I'm so sorry to say, but odds are you won't hear invites from most of them, as these programs usually send invites in one go and not in batches. There's a chance with waitlist, but if you see invites being sent out its best to try moving on if you didn't get one. Dwelling on potentially being on the waitlist does more harm than good :/.
What's your profile like? More often than not it comes down to fit and research experience, both of which can be remedied by seeking a research assistant / lab manager position at a top 50 program. Which isn't easy, and takes time, but once you find one you can be financially stable while spending time building your skills and CV, refining your research interests, and reaching out to prospective labs. Being able to attend conferences and present is a huge way to make connections, too.
Initially being rejected my first round, I was really disappointed. One of the labs I applied to, though, liked me enough that they helped me find a job as a Lab Manager. Its not what I originally wanted, but it ended being incredibly worth it. Now, even if I'm rejected again, I'll just apply next year knowing I'll have a stronger CV, more publications, more connections, etc.
Point is, you have got options to pursue, just don't give up!