I am by no means one of the experts on this forum, but I have listened to their advice long enough to know what they are likely to tell you: if you "need to lose a lot of weight" you should not be on AAS. You should not be even considering AAS. You should be worrying about your diet and exercise.
If you want help with your diet and exercise plans, you'll get the best feedback if you start out by reading the sticky that says "start here," which will explain what kind of information you should include in your first posts.
Good luck.