That was the first manga I finished! I hope you enjoy it.
In comparison to earlier attempts to join the ABBC, what got me through was patience and sticking with it day to day. Check the book club threads as probably someone else asked about it if you’re stuck on something. And you can still ask questions, someone nice is probably still hanging around and can help you. As others have said, just learning to parse sentences will be your first hurdle. All the other resources mentioned are really great, but at the very beginning stage, the book club threads will probably be the easiest way to find explanations that are relevant to what you’re trying to figure out.
The other thing that helps is to read a section, like 2-4 pages, even if you don’t understand all of it. It gives you context so when you go back and start doing lookups, then it will make more sense in the bigger picture.
And if at some point you are looking for other tools (but as above, I don’t think you necessarily need more):
For grammar, in my first few books I did get really good use out of this Japanese Grammar Dictionary
And mostly, I learned grammar by reading stories on Satori which I used before, alongside, and after reading my first manga and other Japanese books. I would learn a lot of the grammar on Satori, and then recognise it in manga like ちいさな森のオオカミちゃん and it made it so much easier to keep going.