Has anyone stayed in a relationship with someone since high school? If so, how did you both stay together?? I'd love to know!

I Have a lot on my mind ,I'm trying to chase my dreams whether I will succeed ? I don't know ,still got a lot to learn about me and life .I am struggling to not make my anxiety overcome me as I am shy and will lose myself and just will give up on everything, blurt it will deffo be a good opportunity for me overall!!!!!! ::)xx