Hi again, Zac.
If you are in a position to be able to afford it, getting a new computer sounds like the way to go.
When you start using a combination of BIAB and DAWs to create songs, you will definitely be pleased with more power.
In 2006, I tentatively bought an entry level BIAB not quite sure what to expect. Ever since then I've been hooked. I love writing and producing songs. Not a day goes by where I don't use BIAB. It becomes addictive!
All the best,
Noel