its depend on what is your end goals, do you want to be professional? do you want to play for leisure? do you want to play the guitar for leisure but keen on pushing the limit?

My recommendation to you, go to professional class such as Yamaha, Bentley or any music academy, only if you wish to earn the certification but if you only want to learn the guitar, I recommend you to go to small guitar shop as it is more cost effective and yet, you still can get professional input.

I personally, went to small guitar shop class for 3-6months back when I'm 18, and ever since that I learn by myself. There is something that you cant learn on your own rather to have a guitarist/educator to teach you, in my case, i had a bad time understanding strumming skills and my teacher really help me to understand that matter to another level.

the good thing by having a teacher is that they can correct your playing. by having an observer they can point out the mistakes in your playing. this can fasten your guitar playing skills.