diff --git a/src/main/java/me/fivevl/doublejump/Main.java b/src/main/java/me/fivevl/doublejump/Main.java
index 92ddb64..5e17986 100644
--- a/src/main/java/me/fivevl/doublejump/Main.java
+++ b/src/main/java/me/fivevl/doublejump/Main.java
@@ -77,7 +77,7 @@ public class Main extends JavaPlugin {
         sql.setPort(credentials[1]);
         sql.setDatabase(credentials[2]);
         sql.connect();
-        sql.execute("CREATE TABLE IF NOT EXISTS `settings` (`uuid` VARCHAR(36) NOT NULL, `strength` DOUBLE NOT NULL DEFAULT '1', PRIMARY KEY (`uuid`))");
+        sql.execute("CREATE TABLE IF NOT EXISTS `settings` (`uuid` VARCHAR(36) NOT NULL, `strength` INT NOT NULL DEFAULT '1', PRIMARY KEY (`uuid`))");
     }
 
     public static String color(String s) {
diff --git a/src/main/java/me/fivevl/doublejump/events/OnFly.java b/src/main/java/me/fivevl/doublejump/events/OnFly.java
index ce0cb92..602ec25 100644
--- a/src/main/java/me/fivevl/doublejump/events/OnFly.java
+++ b/src/main/java/me/fivevl/doublejump/events/OnFly.java
@@ -22,7 +22,7 @@ public class OnFly implements Listener {
             Main.doDoubleJump.remove(p);
             CachedRowSet rs = Main.getMySQL().query("SELECT * FROM `settings` WHERE `uuid` = '" + p.getUniqueId() + "'");
             rs.next();
-            p.setVelocity(p.getLocation().getDirection().multiply(rs.getDouble("strength")));
+            p.setVelocity(p.getLocation().getDirection().multiply(rs.getInt("strength")));
             p.setFallDistance(0);
         }
     }
diff --git a/src/main/java/me/fivevl/doublejump/events/OnInventoryClick.java b/src/main/java/me/fivevl/doublejump/events/OnInventoryClick.java
index 72f997a..de5fa25 100644
--- a/src/main/java/me/fivevl/doublejump/events/OnInventoryClick.java
+++ b/src/main/java/me/fivevl/doublejump/events/OnInventoryClick.java
@@ -25,16 +25,13 @@ public class OnInventoryClick implements Listener {
         e.setCancelled(true);
         CachedRowSet rs = Main.getMySQL().query("SELECT * FROM `settings` WHERE `uuid` = '" + p.getUniqueId() + "'");
         rs.next();
-        double strength = rs.getDouble("strength");
-        double newStrength = strength;
-        if (e.getRawSlot() == 12) newStrength = strength - 0.2;
-        if (e.getRawSlot() == 14) newStrength = strength + 0.2;
+        int strength = rs.getInt("strength");
+        int newStrength = strength;
+        if (e.getRawSlot() == 12) newStrength = strength - 1;
+        if (e.getRawSlot() == 14) newStrength = strength + 1;
         if (newStrength < 1) newStrength = 1;
         if (newStrength > 5) newStrength = 5;
         if (strength == newStrength) return;
-        DecimalFormat df = new DecimalFormat("#.#");
-        df.setRoundingMode(RoundingMode.CEILING);
-        newStrength = Double.parseDouble(df.format(newStrength).replace(",", "."));
         Inventory inv = e.getClickedInventory();
         ItemStack item = inv.getItem(13);
         ItemMeta currentStrengthMeta = item.getItemMeta();
diff --git a/src/main/java/me/fivevl/doublejump/events/OnJump.java b/src/main/java/me/fivevl/doublejump/events/OnJump.java
index 46520b5..f3b9e63 100644
--- a/src/main/java/me/fivevl/doublejump/events/OnJump.java
+++ b/src/main/java/me/fivevl/doublejump/events/OnJump.java
@@ -14,6 +14,10 @@ public class OnJump implements Listener {
         Player p = e.getPlayer();
         if (p.hasPermission("doublejump.use") && (p.getGameMode() == GameMode.ADVENTURE || p.getGameMode() == GameMode.SURVIVAL)) {
             p.setAllowFlight(true);
+            if (Main.doDoubleJump.containsKey(p)) {
+                Bukkit.getScheduler().cancelTask(Main.doDoubleJump.get(p));
+                Main.doDoubleJump.remove(p);
+            }
             int id = Bukkit.getScheduler().scheduleSyncDelayedTask(Main.getInstance(), () -> {
                 p.setAllowFlight(false);
                 Main.doDoubleJump.remove(p);
diff --git a/src/main/java/me/fivevl/doublejump/guis/JumpGui.java b/src/main/java/me/fivevl/doublejump/guis/JumpGui.java
index 25825c5..5d35624 100644
--- a/src/main/java/me/fivevl/doublejump/guis/JumpGui.java
+++ b/src/main/java/me/fivevl/doublejump/guis/JumpGui.java
@@ -42,7 +42,7 @@ public class JumpGui {
             ItemStack currentStrength = new ItemStack(Material.FEATHER, 1);
             ItemMeta currentStrengthMeta = currentStrength.getItemMeta();
             currentStrengthMeta.setDisplayName(Main.color("&2Current Jump Strength"));
-            currentStrengthMeta.setLore(Collections.singletonList(Main.color("&e" + rs.getDouble("strength"))));
+            currentStrengthMeta.setLore(Collections.singletonList(Main.color("&e" + rs.getInt("strength"))));
             currentStrength.setItemMeta(currentStrengthMeta);
             inv.setItem(13, currentStrength);
         }