Heartbreak after heartbreak after heartbreak. Is this normal or am I just weak?

I've had my heart trampled and spat on by five different guys in the span of 16 months. Besides the first guy being an FWB that didn't work out in the end, the rest were guys that slept with me and then decided that they are "not ready to be in a relationship" for bullshit reasons like:

• not gotten over his ex.
• needs to focus on career and himself first. Also prefers a simple-minded and more "convenient" girl over me.
• chose a basic bitch* over me.
• I don't have a big enough ass or boobs.

*Basic bitch being, she was a honey trapper from a developing country in South East Asia and her goal in life was to marry a white guy as her ticket out of poverty. She found her victim.

I'm really struggling psychologically after all these emotional trauma and have become severely depressed and anxious. I've now got trembling hands 24/7 and have to take a cocktail of medication for depression, anxiety and a mood stabiliser. Had to quit my job because of my health. I don't know if five consecutive nasty heartbreaks within 16 months is a normal thing for people but it's not normal for me and I'm not dealing with it very well. A couple of them assured me that they wouldn't hurt me and that I could trust them completely which I did, and they still turned out to be huge fucking liars in the end.

Where did I go wrong here? Is it because I always enter these kind of situations too idealistic/delusional? I'm thinking the problem here is ME, not these guys. I'm feeling like absolute shit about myself and hanging on by my fingernails at the moment.

Please help.