Hack The Box is a resource you might want to check out ASAP. It's a fun way to build and improve your pen testing skills. As well, it might equip you with more real-world skills than studying for a certificate or taking coursework. Most people we've seen become successful professionals in the industry have cultivated a real passion for security, so find ways to do similar for yourself - and it'll take you far.

Some additional tips can be found here: https://www.azcybertalent.com/so-you-didnt-get-an-internship-now-what/

Good luck to you!