Whenever the weight gets too high, i cant do it, and have to drop back down.

Have never deadlifted more than 165 or squated more than 110 with good form.

The only muscle i am able to push myself with are bicep curls - 12,8,6 x 6,5,4 super set with low and high weight no rest.

I have the dedication to go to the gym. Whether im sick, its raining snowing, cold or tired from work, i get to the iron temple.

My problem is when im there, i am afraid of lifting toi heavy and hurting myself or i just stop / give up, which leads me to cuck lift.

How can i stop cuck lifting?