How do you pick cloths that fit? I've recently lost a bunch

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How do you pick cloths that fit?

I've recently lost a bunch of weight and am looking pretty handsome. I want to add to it with solid fashion, but I can't figure out how to choose the right size.

I was recently looking at pics of myself and it was obvious they were baggy. But when I went out and bought tighter ones, while they did look better, they squeezed my body so much that I'd just feel self conscious wearing them in public.

It's even worse with jeans. I was once out with my GF trying on clothes, and we tried on this pair of jeans that she said made my butt look great. I bought them basically because she insisted, buttering me up with flattery, but after we broke up I never had the balls to wear them again.

I've also found that wearing tight clothes can get ramdom women hitting on you, which I've always found very uncomfortable especially if there's a big group of them.

What do, /fa/?

I want to dress sexy but I'm too shy to do it publicly.

Is there a middle ground?