0. Find someplace warmer and milder. CA coast between Los Angeles and San Diego.
1. Waterproof dry bags for electronics with desiccants. Beware taking cold electronics into warm rooms because that equals condensation, shorts, and/or corrosion.
2. Live in a vehicle, preferably a small RV and somewhere not adverse to vehicle dwelling.
3. Focus on what clients want specifically, not all possible technologies. Sign contracts charging by the project milestone rather than an hourly rate. Deliver without delay. Get an LLC (corporation) because it's cheap and allows large clients to pay you. Don't work for peanuts. $3k/week as an example.