Net-work to get-work. Go to as many political and think tank events as you can. Talk to people. Ask advice. Make friends.
You might also consider options like working in the civil service or think tanks, which can lead to party politics later. Don’t bet everything on the ‘work for an MP’ path, even though it is a common route.
I’d agree. We have this old blog post based on 4 interviews with insiders in the UK:
https://80000hours.org/2016/01/10-steps-to-a-job-in-politics/
And the first point is:
You might also consider options like working in the civil service or think tanks, which can lead to party politics later. Don’t bet everything on the ‘work for an MP’ path, even though it is a common route.