Need advice!!

I started to date this guy and I really like him and all but before we started dating and we hung out and acted like I couple it felt like less pressure but now that we are dating I feel so much pressure. I liked when we weren’t dating but acted like it because I wasn’t worried about other girls texting him or cheating but for some reason now I am. And it’s also like we have no classes together at school so like I barley see him at school but when I do we mainly just say hi and hung but when we are at his house we do so much more idk how to feel. And we out each other in our bios with a heart and lock beside our initials but he changed his to my initial but a squid emoji and I changed mine to his and just a heart....

Sorry for the long paragraph but I just need advice on what to do.