diff --git a/src/Carbon/AbstractTranslator.php b/src/Carbon/AbstractTranslator.php
index 48441e7c29..9c8a430b7b 100644
--- a/src/Carbon/AbstractTranslator.php
+++ b/src/Carbon/AbstractTranslator.php
@@ -250,11 +250,7 @@ protected function translate(?string $id, array $parameters = [], ?string $domai
      */
     protected function loadMessagesFromFile($locale)
     {
-        if (isset($this->messages[$locale])) {
-            return true;
-        }
-
-        return $this->resetMessages($locale);
+        return isset($this->messages[$locale]) || $this->resetMessages($locale);
     }
 
     /**
@@ -359,13 +355,13 @@ public function setLocale($locale)
             parent::setLocale($macroLocale);
         }
 
-        if ($this->loadMessagesFromFile($locale) || $this->initializing) {
-            parent::setLocale($locale);
-
-            return true;
+        if (!$this->loadMessagesFromFile($locale) && !$this->initializing) {
+            return false;
         }
 
-        return false;
+        parent::setLocale($locale);
+
+        return true;
     }
 
     /**
diff --git a/src/Carbon/CarbonInterval.php b/src/Carbon/CarbonInterval.php
index 8f18c45b9e..3f7bef2b76 100644
--- a/src/Carbon/CarbonInterval.php
+++ b/src/Carbon/CarbonInterval.php
@@ -1435,11 +1435,9 @@ protected function getForHumansParameters($syntax = null, $short = false, $parts
             ];
         }
 
-        if ($altNumbers) {
-            if ($altNumbers !== true) {
-                $language = new Language($this->locale);
-                $altNumbers = \in_array($language->getCode(), (array) $altNumbers, true);
-            }
+        if ($altNumbers && $altNumbers !== true) {
+            $language = new Language($this->locale);
+            $altNumbers = \in_array($language->getCode(), (array) $altNumbers, true);
         }
 
         if (\is_array($join)) {
@@ -1825,15 +1823,15 @@ public function __toString()
     {
         $format = $this->localToStringFormat;
 
-        if ($format) {
-            if ($format instanceof Closure) {
-                return $format($this);
-            }
+        if (!$format) {
+            return $this->forHumans();
+        }
 
-            return $this->format($format);
+        if ($format instanceof Closure) {
+            return $format($this);
         }
 
-        return $this->forHumans();
+        return $this->format($format);
     }
 
     /**
diff --git a/src/Carbon/CarbonTimeZone.php b/src/Carbon/CarbonTimeZone.php
index fdb31b98ed..9ecd33981e 100644
--- a/src/Carbon/CarbonTimeZone.php
+++ b/src/Carbon/CarbonTimeZone.php
@@ -101,15 +101,15 @@ public static function instance($object = null, $objectDump = null)
             $tz = static::getDateTimeZoneFromName($object);
         }
 
-        if ($tz === false) {
-            if (Carbon::isStrictModeEnabled()) {
-                throw new InvalidTimeZoneException('Unknown or bad timezone ('.($objectDump ?: $object).')');
-            }
+        if ($tz !== false) {
+            return new static($tz->getName());
+        }
 
-            return false;
+        if (Carbon::isStrictModeEnabled()) {
+            throw new InvalidTimeZoneException('Unknown or bad timezone ('.($objectDump ?: $object).')');
         }
 
-        return new static($tz->getName());
+        return false;
     }
 
     /**
@@ -231,15 +231,15 @@ public function toRegionTimeZone(DateTimeInterface $date = null)
     {
         $tz = $this->toRegionName($date);
 
-        if ($tz === false) {
-            if (Carbon::isStrictModeEnabled()) {
-                throw new InvalidTimeZoneException('Unknown timezone for offset '.$this->getOffset($date ?: Carbon::now($this)).' seconds.');
-            }
+        if ($tz !== false) {
+            return new static($tz);
+        }
 
-            return false;
+        if (Carbon::isStrictModeEnabled()) {
+            throw new InvalidTimeZoneException('Unknown timezone for offset '.$this->getOffset($date ?: Carbon::now($this)).' seconds.');
         }
 
-        return new static($tz);
+        return false;
     }
 
     /**
diff --git a/src/Carbon/Traits/Comparison.php b/src/Carbon/Traits/Comparison.php
index 9476ebecc5..5e30243a89 100644
--- a/src/Carbon/Traits/Comparison.php
+++ b/src/Carbon/Traits/Comparison.php
@@ -621,19 +621,19 @@ public function isSameUnit($unit, $date = null)
             'microsecond' => 'Y-m-d H:i:s.u',
         ];
 
-        if (!isset($units[$unit])) {
-            if (isset($this->$unit)) {
-                return $this->resolveCarbon($date)->$unit === $this->$unit;
-            }
+        if (isset($units[$unit])) {
+            return $this->isSameAs($units[$unit], $date);
+        }
 
-            if ($this->localStrictModeEnabled ?? static::isStrictModeEnabled()) {
-                throw new BadComparisonUnitException($unit);
-            }
+        if (isset($this->$unit)) {
+            return $this->resolveCarbon($date)->$unit === $this->$unit;
+        }
 
-            return false;
+        if ($this->localStrictModeEnabled ?? static::isStrictModeEnabled()) {
+            throw new BadComparisonUnitException($unit);
         }
 
-        return $this->isSameAs($units[$unit], $date);
+        return false;
     }
 
     /**