i had a similar mindset to you coming into college where i wanted to achieve a lot. it's important to have that ambition earlier on, as it can propel you to improve yourself.
at the same time, don't get disheartened if things don't work out the first time around. i had a lot of issues in my first two years chasing after this idea of "lifelong college friends", and it's only after i stopped chasing and focused on myself that i was able to build some stronger friendships. engage with your hobbies and the things you like to do - people with similar interests can be found there.
be flexible and open - have a list of priorities for the day, and engage in "productive procrastinating" where you procrastinate on something by doing an unrelated productive thing (like taking a break from an essay and cleaning up my room). i split my time between career prep, clubs, and other engagements using this tactic.
it's a time of a lot of change, but you got this. good luck :)