I was an accountant at a smallish firm. Enjoyed the work and my colleagues but felt unfulfilled churning out accounts and tax returns.
Found a local charity and started doing accounts and finance for them.
About to start a business with my wife providing accounting and business advice to small charities.
Sometimes you don’t need to completely change track to find fulfillment but just ply your current skills in a more fulfilling sector.
It depends on what skills you already have.
£2k to learn a marketable skill from scratch doesn’t sound like much but £2k to develop skills you already have could be more than enough.