It depends on my conviction. On a typical long-term trade I will risk 1% on my initial entry, that will rise to 2-3% if the trade works out well and the market action confirms my view. I am shooting for at least 3 times my risk, often 5 times. So I expect to make 5-15% return on my total capital on a typical position trade if it works out. 3 or 4 of those per year is enough to make a nice return.
On very high conviction & high probability trades I will risk up to 5%, but this is extremely rare. Maybe once every year or two.
I typically only make about half a dozen serious position trades per year. If they all lose then I'd be down 5-10%, which I find acceptable.
If you are regularly risking 5%+, you need to run some Monte Carlo simulations and plug in your risk/reward and % win rate estimates. Unless you have a huge edge and impressive win rate, you are likely to be running the risk of a much bigger drawdown and possible blowup than you expect.