First of all you are asking a lot of questions that show me you should do some reading before jumping into a cycle. You have done great work so far losing weight, but building muscle in an effective way is a different thing. I would first advise you to make SURE your training, diet, and supplements are on point (for example - are you using intraworkout nutrition, are you getting enough protein, has there been any kind of stall in your training that indicates it’s actually time for a cycle)…I would ensure all of these first.
If you are going to do it anyways, then I always recommend a first cycle be just testosterone (roughly 500mg per week for 12 weeks minimum), HCG 250iu twice per week starting the second week of the cycle, and arimadex or nolvadex (arimadex start with 0.5 every third day and increase if needed, or nolvadex 10mg every day and increase if needed).
As for where you can get it - your best bet is probably talk to the biggest guy at your gym, or try and get trt perscribed for you - they are often very lenient as to who they prescribe to.
For liver support use tudca and NAC as a staple.
You will feel a difference 3-4 weeks into the cycle.
By the way this doesn’t lift the weight for you …it just provides the ability to train harder and recover faster.
Again I would do way more research - it is something that impacts your health and you want to make sure your decisions are educated.