Congrats!
I also received two rejections, back-to-back, very early in the season. I only applied to four places so that scared me. Then I got into my 2nd choice, and a month later (pushing RIGHT up to the 4/15 deadline), got into my top choice!
A professor I know, when I told him I was accepted, said "it's nice to know it's not just in your head, isn't it?" and I think that sums up a lot of how I feel. I thought I would be a good applicant, then I started questioning it, and now I'm happy to realize other people also think I'd be good in grad school. It's very affirming.
Now to figure out housing, with my state on lockdown, but luckily a lot can be done over the internet!