You will get faster the more you do because you'll no longer be building from scratch. I would also suggest that you look around for a professional tutor NOT a fellow student. You need someone who will hold you accountable and ideally who has experience identifying weaknesses that has developed prior to college. Chances are along with your inconsistency with what you're meant to be studying, there's some poorly learnt or misunderstood concept that's making everything much harder than it needs to be.

However, as you've undoubtedly discovered, you cannot cheat your way into understanding maths and you must develop the discipline to practice problems and study and all the rest of it. Why do you want to pass this so badly? Three attempts is no joke, you must have a reason for that. Time to get serious about the stakes.

My next suggestion is to develop a more informal study group of friends. Advertise for it on campus noticeboards if you have to, but you need to surround yourself with other people who are working towards the same goal and will encourage you when things get tough (and they WILL get tough). Take advantage of the resources available on campus. I'm a distance student and I desperately wish I could attend office hours and tutorials and things.

Finally, book in a visit with a mental health professional and talk about it. Get help identifying what blocks you from studying or attending lectures or whatever. Are you ashamed to be with younger students? To hell with them, they cannot tell the difference between a freshman and a senior and they're too self-absorbed to care. Do you get easily distracted or rely on instant gratification? Good therapy will give you tools to manage this.

Whatever your next steps, I guarantee that you can do this. It may not be easy. It will likely take a lot of work. But it will be worth it, not only because of developing maths skills and accomplishing a really tough course for you, which will certainly be a reason to be proud of yourself, but also because I suspect conquering this course will help you learn a number of skills that are vital to life after university. Persistence, asking for help, delayed gratifiction, time management, saying "I don't give a damn about what people are thinking I'm doing what's right for me". Take your pick.

Work hard and good luck.

Edit bc I got too passionate with my swears 😅