I Hate my Job but Earn $200K +

I (22 y/o male) used to love what I did until I went fifo I went fifo to save for a house deposit and in doing so have discovered the FIRE movement how do I develop an investment plan that that will allow me to go back to doing what I love where the salary is only between 60 - 80K

Since being fifo I have saved $40K lost my partner and kid (she couldn’t handle the stress) and attempted suicide once.

I need a plan don’t want what I’ve lost so far be all for nothing. I was planning on staying till the end of the financial year and buying an investment property worth around 700k then taking a step back and try to salvage my mental health. Burnout in your 20s is pretty sad haha