I’m probably going to get a lot of hell for this but I was unsure of what to do with my offer. Up until the deadline I was still tossing between my course preferences. Now I do not want to reject my first offer but is there any possible way for me to still get another offer in the second round whilst keeping my first?
Yes, you need to make a decision re: your first offer before it lapses. My suggestion would be to accept and enrol and then go from there. If you want to defer, you must submit the application to do so before the census date. You are able to withdraw etc. up until the nominated census date, so hold onto the 1st round course until you are absolutely certain you have the 2nd round one.
Note that either rejecting your first round offer or letting the offer lapse will mean that if you don't get anything else in future rounds, you'll have nothing. Always accept the first round offer so you have the safety net in the event nothing else happens in round 2+. Again,
you can withdraw up until the census date with no penalty.
Note regarding holding onto offers when you don't really want it (directed to all those in this situation):It is perfectly fine to hold onto an offer and wait for your desired one in the 2nd, 3rd etc. rounds, however be mindful that the longer you hold onto it, you are essentially taking a spot that somebody else may really want. CSP places in particular are capped/limited.
Once you have the course you want, please do the right thing and withdraw from the other ASAP rather than waiting it out, so that somebody else can access the course before the rounds are over.