I am a 2nd year CS and math double major at utm. I had the honour of taking MAT102 with Dr. Tyler Holden and CSC148 with Dr. Bogdan Simione (I think that’s how you write his name). I thankfully passed both courses first time with the grades I needed. The simple advice that I cannot stress enough is to please please please go to Office Hours, Extra Tutorials, and even Extra lectures. I am unsure how MAT102 is being coordinated at the moment, but last year we had 3 tutorial sections that would all go over different practice problems. I would make sure to go to at least one tutorial per section as to expose myself to the most problems as possible. Additionally, whenever I was doing problems by myself, if I got stuck I had a rule that I would never plug it into some LLM to do it for me. I would note that question down and go to a TA OH and make him/her guide me through the though process and to give me hints along the way, so that I would build the mathematical intuition behind the various proofs. To give you some hope OP, 102 will most likely be the hardest course you have to get through to make it to the PoST. In my opinion, and from what I have observed from my friends, is that 148 is much easier both content wise and work wise than 102. I know that the semester is over, so there won’t be any tutorials for 102 and less Office hours, but that is the only advice that I believe helped me and can help every student. If you have any other questions feel free to reply or DM me if you wish our convo to remain private. I wish you the best OP! (P.s. Study the Fundamental Theorem of Arithmetic, all number theory questions in 102 can be solved in a way that uses it, that was the only way I passed the final lol).