Was in the same boat last year. Rejected from all the universities I had applied to. Was really confused and in a bad place mentally. Took sometime for me to accept reality and move on to work with the opportunities I had. Just tried reaching out to every prof I thought was working in my field of interest and asked them if I they had opportunities in their labs, either paid or unpaid. Accumulated a years worth of research experience like this. Luckily it was in a place very close to my POI so I could contact him as well and get work in his lab. I have the feeling that this year's applications will also probably end up being rejects. But I'm not too worried this time, since I have been through the same experience before. It has taught me a lot of things and brought me a lot closer to where I want to be. Just stay patient and keep trying to work in the field of your interest so you don't lose your edge.