Increase the speed after collision

I have this Script:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class movement : EnergyCollection
 {
     public float speed = 3f;
     public Rigidbody2D rb;
     public Animator animator;
 
     Vector2 moveement;
     
     void Update()
     {
         moveement.x = Input.GetAxisRaw("Horizontal");
         moveement.y = Input.GetAxisRaw("Vertical");
 
         animator.SetFloat("Horizontal", moveement.x);
         animator.SetFloat("Vertical", moveement.y);
 
         animator.SetFloat("speed", moveement.sqrMagnitude);
     }
 
     private void FixedUpdate()
     {
         rb.MovePosition(rb.position + moveement * speed * Time.fixedDeltaTime);
     }
 
     void energy()
     {
         if (ennergy == true)
         {
             speed = 10f;
         }
     }
 }
 

When I collide with a object ennergy is set to true But it isnt working im still 3f fast And Ideas^^ thx for all answers :)