You asked for advice, so here goes:

A little bit about me - husband didn't become an addict until about 10 years into our relationship. Things got crazy and SO hard, and even now that he found recovery, I still sometimes contemplate how differently my life would be had I not met him. Quite frankly, given the choice of being able to use a time machine, I think I might do things differently.

He is in active addiction, he is lying to you. I promise you that things WILL only get worse. Eventually he might start stealing from you. Until he seeks some help on his own, this will only degrade into your own personal hell.

You are young and have tons of options. Put yourself first. He is already lying to you. Why put up with this? You ARE worth more than that, and you deserve more than that! You can find better than that!

You can't fix him, you can't change it - only he has the power to do that. It's a hard truth to face that you are helpless in helping him. But you can help yourself. Focus on your studies, get your degree, take care of yourself.

It's hard, and it sucks, and you don't deserve this. Focus on yourself and what you need. Do not forget what you deserve, and that's someone who doesn't lie to you!