I want to take a break from working

I (25m) went through the most horrific break-up 6 months ago, which led me to realise that I am deeply unhappy with my current life, especially my job.

I am thinking of resigning from my relatively well paid, but stressful job in a bank in order to spend around 6 months travelling, completing professional work related certifications and spending time on hobbies I have neglected for the past few years.

Living with my parents since I started working has allowed me to save around £300k: £150k in my Vanguard, £50k in other brokerage accounts / crypto and £100k in my current account.

How foolish would it be to quit my job and spend a good 6 months out of the workforce given my situation?