Testosterone isnt going to magically cure your depression and make you lose weight.
Pinning every 7 days is also far too inconsistent. You should be pinning as often as possible for stable blood concentration, for Testosterone Enanthate EoD(Every other Day) is good.
Make sure to get bloodwork before you fuck with your hormones and see what your baseline is, steroids arent like drugs you can just go on and off and be back to ”normal”, this is a lifelong commitment especially at your age you probably wont come off ever if youre currently hypogonadal.
You also probably wont ”get active” if you have never trained before and dont know how to live a healthy lifestyle. Start slowly, get the basics down first, you might not even need TRT depending on what your bloodwork says
My 2 cents: Get bloodwork, check your hormonal profile and your biomarkers, start with 50mg Test E Intramuscularly EoD (175mg/week), get bloodwork again after 8 weeks and check your new levels, adjust testosterone and ancillaries accordingly