I didn't even see the 155lb stat! Oh boy..
Spunky my friend, you really are a long way away from embarking on the AAS adventure. Listen to what Stem has suggested and you'll be in better shape next year when it comes time to build upon your newly formed solid muscle base.
If you do a cycle now, you likely will not keep any of it because you have not built a foundation for any new muscle to grow on. You first need to build some solid dense muscle in order to maintain any new muscle. Then, you need to eat more to maintain your new muscle. You see, it’s all about eating. Figure out your TDEE and up your cals at least 500 each day to gain some weight. Workout regularly and eat a high calorie clean balanced diet. There's no magic pill. The magic is EATING.
You need to learn to eat properly before you learn to use AAS.
Good luck
