The though of playing ranked stops me from playing ranked

I need help with this problem. I cannot play ranked it just seems way to stressful to solo q and i wont always have a duo partner. When I actually play ranked im fine and im usually calm but its before I play ranked. Its just so stressful to hit the "accept" button, and I know I sound dumb and probably is most likely dumb, but just saying "press the accept button" doesnt help me at all its harder then it sounds for me. Like I said in game im actually calm but when Im about to play ranked or thinking about playing ranked it stresses the hell out of me. I dont know what the problem is and how to fix it all I know is I need help dealing with this problem.