I remember at least one study that concluded one of the best ways to learn a language is the reading time of the target language. With quite a number of grammatical analyses, good digital dictionaries which recognize even complex compounds, and handy reference grammars out there, this can be accomplished right from the get-go. I think this approach is also more fun and less of a headache than using most grammars that contain lessons. Below is a link to a short summary of that approach.
I also attached here a further grammatical analysis, in case of interest (A Grammatical Parsing of Basic Recitations.pdf). Alongside Ven. Bhikkhu Bodhi’s grammar guide Reading the Buddha’s Discourses in Pali already mentioned, Anuruddha’s A Guide to study of Pali: the language of Theravada Buddhism is also very handy and a bit more detailed with the grammatical analyses, as far as I remember (https://www.amazon.com/Guide-study-Pali-language-Theravada/dp/9889929678).
Wish you all the best with your Pāḷi studies!