Deepest Sigh

I hate to talk so much about things that could be seen as negative, but I swear this is not one of those posts... Kinda.
The thing is basically this:
I think I might be a magnet for people with problems, mostly psychological problems, with themselves, with their families, and things that develop into environments that could be propitious to the development (I can use this word, cause it's totally different to the other one I used before) of mental illnesses or problems.
Why do I say this?
Cause most of my friends, and people I care a lot about have came to me saying things like those, or I've been the one asking "hey, are you ok?" and finding myself with a "no" for an answer.
I can give examples, my two exes, one of my old crushes which is a really amazing person, a friend of mine that I've tried to know better now, a transgender friend, and so the list goes and I'm pretty sure it expands even to my university classmates.
This is kind of a really messy thing, cause, well, I WANT TO HELP THEM BE HAPPY! They're my friends and I care about them a lot and I wish I could help them all with their problems and things... And I try, really really hard most of the time... But I'm pretty sure it doesn't always go the way I plan it...

Sigh!

Friendship is weird, and I'm not sure if in a good friend or not, but at least I try...

Also, I think this is one of the reasons I picked this career, but I wasn't conscious about it...