I'm in a six year dry spell...no sex in six years and I'm feeling nervous.

🌈J
I haven't kissed anyone in that amount of time either. I've been pretty sick sporadically and didn't have much drive to get out and date and the people I did date didn't feel the chemistry. 
I also have never slept with a woman. I have only had sex with one man and it was adequate. 😂 I hate saying that but it was a buddy thing where he helped me out with my virginity and we had fun. 
However, I'm talking to a girl and I think we're going to meet up soon. 
Do I tell her what's up? That I haven't dated in awhile and I need her to be patient? Or do I wait til after I suck at kissing?? 
Help a gal out please?