As you might have guessed, it's not easy to further plot or generate conflict with a main character whose sole action is to avoid conflict.
The central character in the Thing I Should Be Working On really hates being involved in anything resembling a plot or adventures and very much wants it all to go away and leave him in peace, so I have some sympathy for your position, and it's possible my experience there might be of some use, so fwiw:
The basic way round that difficulty I picked was a variant on the Hitchcock "running man" plot. My protagonist finds himself in a situation where he is, without knowledge or consent, suddenly important to some people; he doesn't really know who they are, why he is important to them or what their motivations are, and the obvious first guesses at those answers fairly rapidly show themselves to be wrong. Meanwhile different bunches of people are variously chasing him, shooting at him, and framing him for crimes he did not commit, all to try to get him to do
something, but he does not know what, and are interpreting his actions as part of a complex plot based on the assumption he has information he doesn't; and there are factions whose interests are served by other factions being distracted by all this running around.
The thing that most needs, sfaict, is for there not to be reliable competent authorities to whom the character can immediately turn to have the problem solved. (My character's expectation is very much that there
should be, but this turns out not to be the case.)
As for using mind control, the question that raises for me is; why is this person in particular the one who gets controlled ? I can see any number of ways to make a good story out of that (the first one to come to mind is; villain controls protagonist to do something criminal, then disappears, leaving protagonist hunted by police for a thing protagonist did without intent). Quantus makes a good point that that could read as a severe violation (me being me, I am immediately seized with the desire to assemble a social context and set of moral assumptions where it isn't, but that's just worldbuilding-brain talking) but if it is one, that might serve as motivation for the character becoming more proactive later.
I should note that I don't actually understand how people mentally correlate "this character's choices are significant and matter" with "this is a character worth caring about and reading about"; from my perspective we live in a world where most of any random individual's day-to-day choices have relatively little significant effect, so for the same to be true of a fictional character just makes them more plausible. (This is coming from a perspective of having OCD such that I frequently run up against people talking about choices or thinking choices exist where from inside my head they just obviously don't.)