Lmk when u will be Los Angeles.

. Then I won't have to have this mess any longer.
I can run some wire thru the attic across to the garage or conduit along the front of the house along the eaves
It's cheaper if I fly you out here.
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Reminds me of this:
If you've got a 200 amp service panel, I assume you've got plenty of room to tie in AT LEAST a 50 amp sub panel to your garage. For that, you would need a 50 amp breaker from the service panel, feeding at least a 6/4 cable to the sub (or if you use a conduit for your ground, you can use 3 conductors for your 2 hots and neutral connection). You'll probably want something like a 100 amp load center in the garage. The main thing is just that whatever breaker you feed with from the service panel doesn't exceed the amperage capacity of the wires feeding the sub/distribution panel. You can go bigger or smaller, accordingly, but most people will probably find they have a hard time using more than 50 amps on a regular basis (all at once, that is) in a typically garage sized shop.
From there, it's really just a matter of making a few connections and securing the cable (or conduit) throughout the attic and down into the panels.
Now depending on where your service panel is located, and how it's finished into the house, as well as how your garage is finished, will have some bearing on how connections are to be made and finished out, but other than that, there really isn't much to it.
Of course, this doesn't factor in local laws and codes on electrical work, and you may still want to have it inspected by a certified electrician or inspector, otherwise, there may be an issue when it comes time to want to sell your house. (This side of things is a little beyond my current scope of knowledge).
All that to say, this isn't a job that CAN'T be done by your average homeowner, but you obviously do so at your own risk and liability. And whatever you do, don't touch anything above or behind your main breaker in your service panel, or that's gonna likely be all she wrote.
