Opening up and talking to someone is what therapy is. The difference is most randos are bad therapists.

As for drugs, the reason anti-depressants warn about suicide is a paradoxical effect of starting to recover, where if you're severely depressed enough to spend most of your time lying on the floor feeling sorry for yourself, you're less of a suicide risk than someone less depressed who's capable of being self-motivated enough to carry out a suicide attempt.