I think the main thing is, having all your knowledge ready before you start. I’m going to guess your portfolio started before the tax squeeze started 5/6 years ago? You’ll have had time to get it right in the “good times”.
I know a lad, who “knows property”. More than I ever will. Handy, has got a bit of a portfolio going. He got his last £30k deposit from his Ltd Co where he’ll have paid 19% corporation tax & 32.5% dividends. He’s got to earned circa £60k to get taxed to take that £30k for a deposit then still pay stamp duty & tax on the income. Then there’s mortgage interest, potential capital gains, all the stuff I mentioned before about maintenance etc.
That £60k into a pension with no tax on input & 15% coming (after tax free cash) out for an income in retirement income is an option without all of the above stuff. 6%-8% average growth is very achievable over the long term.
Everybody’s different, different needs & goals, but it’s a common misconception buying property is easy & a way to make a quick few quid.