I made it a personal vow of mine to never forget my firsts and to use those experiences to help those coming after me on the same musical road. While you might assume that you'd learn everything you need to know about music from private lessons and music school, it's pretty surprising how unequipped we are when we're thrust into the real world of looking for a job or gig that will actually earn you a living.
I decided to get started on that journey while I was still in school and therefore expected to make mistakes, with the understanding that I was "just a college kid". If you're in college, take advantage of that attitude toward you. Once you graduate from your bachelor degree, all your actions will be judged not as the actions of an inexperienced young adult, but as an experienced working adult. The difference in attitude that your higher-ups and colleagues have toward your career from before and after your graduation day is HUGE.
Don't let that change in attitude take you by surprise; jump into new working experiences while you're still in school!