@JeffGrimesArt I think you let people chatting online to have too profound an effect on your wellbeing, mate. This is a repeating cycle and always results in relapse.
The despair of others is external for sure, when you generate your own, even in response to theirs, that comes from you and becomes external despair to others in turn. Not sure what I can recommend other than cut the vicious cycle, dude. Either stop consuming the despair of others or be witness to it without it causing despair within yourself.
I hope you can get back up after the relapse and keep going, my friend