Life after LLPSI... What Next?

Hello everyone!

First, apologies if this type of post is frequent, but I'm hoping to get some advice on how to improve my Latin.

I've just finished LLPSI, but the ancillary books and Roma Aeterna are too advanced for me.

As a self-learner, what could I do to improve my Latin to read advanced materials? Is there any material I can use to bridge that gap?

My goal is to complete is to complete all of the Orberg series books comfortably and, ultimately, to read classical literature.

Thank you in advance for any advice.