I started learning French on my own with audio books and free resources like music and websites. I took one basic college class (most of the things I already knew from my own studies). I did learn some grammar and how to count to higher numbers in that class. I had been avoiding grammar in my personal studies, so that pushed me to learn more.
I have been taking lessons and practicing speaking with teachers on iTalki since last December. I visited France for the first time this July. I still do a lot of study on my own. I listen to podcasts, watch YouTube, listen to music, and use apps like Duolingo (even though it's not my favorite), etc
Check out the book, How to Speak Any Language Fluently by Alex Rawling. It has a lot of advice for self study and for classes.
I find the more I talk the easier grammar becomes. Keep practicing. Take it a little bit at a time. See what works for you. Grammar can be tough...I am still working on it.
All Best!
Brianna