Appetite suppressant/weight loss?

So I'm 5'7 and I used to weigh 350 back in March of 2020. I lost some weight after eating better, exercising and getting back on my thyroid medication. I'm down to 330. But I'm stuck. For the last few months I stopped working out, and I've been eating really, really bad. I mean fast food or carryout every night. I'm a picky eater and my go -tos are pizza, chicken and fries. I'm TTC and have been for almost 3 years, it's time I lose a good amount of weight. I'm thinking about trying some type of appetite suppressant so I'm not hungry and want to eat. I have meal replacement shakes that I need to drink so I'm perfectly fine drinking those for breakfast and lunch and having a small dinner. I'm not restricting to the point I'm starving myself - my goal for daily calories is 1,750. I'm also planning on starting exercise again. I just need some tips and motivation 😭