How many laser hair removal treatments do I need?

Hello! I’ve been doing self-hair removal all summer, but it’s been too much of a hassle and seems to irritate my skin too much. I’m seriously considering getting laser hair removal at a clinic, but I’m not sure about the exact treatment schedule, so I’m posting this question. Since I always shave with a razor, my skin has become sensitive and I get cuts frequently. I’m planning to sign up for regular laser hair removal treatments this time. From reviews and what people who have tried it say, you usually need to follow the schedule recommended by the clinic to get the proper results. I did some research myself, and I found posts saying that you typically need to receive at least 5 sessions at one-month intervals for the hair follicles to be destroyed and for permanent results. What are your thoughts, those of you who have experience? I also read that you need to coordinate your visit schedule to match your hair growth cycle to maximize the effect, so I’m worried that it won’t be as easy as I thought to visit the clinic at the exact same time while working a busy job. How many sessions do I need to get according to the schedule to get permanent laser hair removal results? I’m very worried...