Welcome to ACL! Make sure to check out the 101 manual as this is the best starting point and covers almost every topic to consider for the hobby.
Lots of info in the forums to search and read, and always someone in the chatroom if you have an urgent question, or just to say hi!
I have a neighbour on here who has done a fantastic job, my little solar fairy lights do not compete hence getting started with pixels.
I am looking forward to getting more involved over the next few months to learn and having a display this year.
The way things are currently looking it may be one of the very few activities families may be able to get out and do.