I started with LLPSI along with Oerberg's companion books (Colloquia Personarum, Fabellae Latinae, Fabulae Syrae). After that I read Hyginus' Fabulae and then
Commentarii de Bello Gallico by Caesar. Since then I've read more Caesar, Nepos, Apuleius, Seneca, some Livy, some Catullus, some Cicero, and I'm currently reading Ovid. I did this by reading Latin for at least 1 hour every day since the first COVID lockdown in 2020, even if I was sick or not feeling it I made sure to get my Latin reading in. I did do a lot of grammar drills in the beginning, and I made an Anki deck for vocab. Grammar drills definitely help big time, along with jumping in head first with a book like LLPSI and reading from the get go is the way to go IMO.
I just looked at my backlog book and apparently I did read the first half of LLPSI 2. I don't recall much from it though. I think after a certain point in the book, I found it too difficult straight after LLPSI 1, which is why.
Caesar is not too difficult either. The biggest problem I had with Caesar was that he used indirect speech a lot and LLPSI doesn't really prepare you too well for that, but you get used to it.