Good thinking, m'Lord, but that may be a dead-end.
I thought those exact same thoughts a while back, but all that happens is you split your concentration.
Since you appear to be a manual trader, you can't really afford to do this. If you had an automated system, and were "baby-sitting" it, perhaps.
I tried IT Recruitment of contractors, since IT was my background, and I could make use of my corporate contacts. Its a time-intensive activity. Thats a dead duck.
One idea I started on but then abandoned was freelance proof-reading, copywriting or submitting articles to newspapers. I have loads of stuff gathering dust, but that too is resource-intensive.
My recommendation is to trade another session, ie, the Japanese, or just increase size so that you can comfortably make 1.5x-2x your living expenses. This would allow for losing or weak patches.
Alternately, increase your TF so you have more breathing space/time between trades. This would also allow more markets to trade.
But you have settled on a particular style and TF, so stick to what works.
Once you commit to trading, its a full-time activity. Cant get around that.
Or, you could start offering your calls via twitter! 🙂 (for a fee, of course)
Or, start doing courses in trading. 🙂