Frustrated hypothyroid

I was diagnosed with hypothyroidism last year and put on medication, I gained weight 2 years ago and my thyroid was all out of wack and my only option was going on meds to prevent anymore damage to my body.

Long story short, I am getting married in 5 months, I weigh 150lb 145 on a good day (which I haven’t seen in a while). I USED to weigh 135-140 lean with a booty... I have love handles now, I don’t have a perfectly flat tummy, my arms aren’t in shape (they never were), my thighs are big, my but is blubbery ... I know I’m not fit anymore, it literally crushes me that it is so hard to lose weight, even with diet it won’t come off, I barely have energy to go to the stores and do normal things how the hell am I supposed to go to the gym.

I went to the gym twice this week and I thought it was a start to something great...

my whole family is giving me shit about how I am going to feel fat on my wedding day, my fiancé doesn’t want to deal with me crying over my body either because he just wants me to be happy and he knows I’m not.

Anyone have any advice on how i can motivate myself to lose weight ? Force myself to the gym? I don’t want to end up starving myself or throwing up months before just to have a body for one day... and bounce back to where i am now.

I just want to be happy with my body, and sometimes I like having the extra little meat, I even have boobs now! But I do miss my old body and would love my confidence back ☹️