I want to lift right, and develop a muscular body.

Ive went from 16bf 130 lb to 18bf 140 lb in one year.

TRASH RESULTS.

I cant squat more than 100 lb, but 5x5 has me increasing every fucking session.

My forms are shit but the programs keep saying increase.

When i lift i barely even feel a burn.

The weight is either too light its easy, or too heavy i cant move it

Can someone give me a book or a resource that will teach me how to lift right?