Hi Henry ( @BaldEagle1 )
Don’t be discouraged. Combining the skills for playing and then adding singing is hard to do. The very briefest of recommendation is to get competent at playing , then singing, then combine them. Again, this is not simple, so failure is nothing to be discouraged about - you will need to work on practice for both.
There are many others here that can give you their personal experience. Me, I just haven’t tried since my voice is quite terrible.
There are a lot of things to read if you use the forum search:
https://community.justinguitar.com/search?q=singing
a couple that may be useful out of the big list: