I don’t know how wise you think I am but I suppose I’ll try and pass along some wisdom I’ve picked up along the way.
Struggling and getting lost in the monkey house that is college is a normal experience but if you’re dead set on your major you will do whatever it takes to successfully complete your studies. You need to be totally dedicated to it, meaning you will need to sacrifice time you normally reserve for leisure and other activities unrelated to your education.
Physics is an extremely challenging major so don’t be surprised by the copious amounts of extra time you will need to dedicate to learning the material. I don’t know where you go to school but I’m sure if you look hard enough you will find a tutor that will be more than willing to help you. TAKE ADVANTAGE OF THEM. Their sole purpose is to help you retain the material you may be struggling with.
Another resource you should take advantage of (if available) is your professor(s). They do this for a living and if you can manage to put some sort of effort into vocalizing your particular dilemma I am almost positive they will put forth a similar effort into making sure you understand what they are trying to teach.
Everyone has a different experience in college. Some people have a smooth ride and many others will find a challenge no matter which way they turn. What your level of success is truly dependent on is the amount of dedication you put toward your studies and sacrifices you make that, in the long run, will open up more windows of opportunity for your future.
But I’m just a lowly biologist.
You should definitely ask Christine the Astrophysicist anymore questions regarding an education focused specifically in physics/mathematics.
I hope you found some form of wisdom in this and best of luck to you and your education!