Yes, those are common, including the suicidal ideation. I deal with them by counseling, meds, and working very hard to make and maintain what relationships I can (friends and family) so I'm not by myself. Hell, I'll go places where there are people just not to be by myself.
It's still very hard--mental conditions persist sometimes no matter what you do. There are an awful lot of people who suffer an awful lot.
I hope you find your way, whatever it is.