[Not solved] RigidBody2D sticks to walls

Hello!

All day i was trying to fix this problem with my player

When i jump and run into a wall. I am able to stay there until i let go of the key to move

I tried using physics materials. They work but i really can't use them because friction is important

I am moving my player by setting it's velocity

Any help would be appreciated!

Edit: Here's my function to move left and right:

 void moveCharacter(string direction) {
         if(canMove == true) {
                 switch (direction) {
             case("Left"):
                 if (playerFacing == "Right") {
                     flipPlayer ();
                     playerFacing = "Left";
                 }
                 Vector2 moveVelL = playerRB.velocity;
                 moveVelL.x = -1 * speed;
                 playerRB.velocity = moveVelL;
                     break;
                 case("Right"):
                     if (playerFacing == "Left") {
                         flipPlayer ();
                         playerFacing = "Right";
                     }
                 Vector2 moveVelR = playerRB.velocity;
                 moveVelR.x = 1 * speed;
                 playerRB.velocity = moveVelR;
                     break;
             }
         }
     }