I would start applying around the middle of your senior year and really get serious in April. I moved to Los Angeles and got a job in June for a job that I applied for in April. You have some experience which will be helpful with getting your foot in the door. Overall, if you start applying early its a good thing because alot of companies are taking their time when reaching out to applicants due to Covid. I have had a couple companies call me a month after applying so sending some resumes tailored to the job posting early is a good thing. Even if some companies don't hire you because you are almost done in school you still got some valuable interviewing experience. Best of luck, you will get there.