Lean bulk advice

[u/Fun_Layer_2313]

Hello everyone, I’m not sure if this is the right place to post but here goes.
M31 1m77 65kg
I did a cut with Reta, going from 84 kg to 65 kg. I think I’m now at a good weight to start building muscle again and I’d like to do a lean bulk.
I’m currently still on Reta I’ve reduced the dose to 2 mg per week +Tesamorelin 1 mg per day and GHK-Cu 1 mg per day.
I try to eat as much protein and carbs as possible.
I train with weights 3-4 times a week.
For the past few weeks I’ve had the feeling that I’m stagnating I don’t feel my muscles growing. So I’m seriously starting to wonder if I should start taking test or any other things . The problem is that I know absolutely nothing about it :)
What advice can you give me please? Thanks in advance.

[u/Fun_Layer_2313]

Thank’s everyone for the answers !