@Pags mentioned their first fun flight was their solo, and I'd echo that. Being beat up in early contacts because you suck, sucks. It gets better. Way better. Can't speak too much on the airsickness bit, just that for most people it does get better. If you haven't yet, before you DOR, TALK TO YOUR CLASS ADVISOR!
I will say that if you DOR your chances of getting anything like IP are about zero. If you med attrite, or airsickness attrite, and sometimes if you normal attrite, you often have a wide spectrum of options. Highly recommend you continue, keep trying, at the very least complete primary before making a decision like this. There are a lot of people that aviation isn't for, but I bet there are more that regret dropping too early. I don't know a single winged aviator that wishes they had DOR'd when things got tough in training.