Sorry for the bad news.
Some years ago something similar happened to me and I decided it was time to start as a freelance (embedded HW and SW design) and also at the same time I found B4X. So while waiting for projects I started learning and doing some apps.
I didn't get millionaire with the apps, but learnt enough, and when I started getting more embedded projects I saw that there was a good chance in mixing both worlds: sometimes expanding an existing board with Bluetooth, Wifi and making a control app, etc. Sometimes I had to convince the customer that this would be good for their product, and in most cases it succeeded.
Now I still want to publish some apps for myself, but just as a hobby when I have time...
So, if you have experience in these two worlds (embedded and B4X) , don't just consider one or the other, but both at the same time, it can be a winner combination.