I have an online friend and I can't stop telling my problems which can't be solved to them, so they just get uncomfortable and sad. 

I don't want to stop talking to them forever that would be a very dick move. (Probably)

 But I don't know what to do when I've made everything so toxic, awkward and uncomfortable. We don't even have fun anymore because I'm terrible

Please help, how do I stop being a clingy burden