I don't understand why crypto taxes can be imposed on your country while as far as I know, crypto is virtually anonymous and no country can set taxes or control users here
Yes, there is the question of whether you can just not say anything, and get away with it. I wouldn't like to follow this route, from an ethical perspective - but certainly when you cash out to fiat there will be the question of where that money came from, and the possibility of tracing it back to previous trades.
if tax occurs, it only happens when we convert crypto into fiat, long-term holdings or trading transactions also need a cumulative time to convert, not necessary to convert every day, so tax is not an issue. You said you made a lot of trading but you still have good appreciation on holding while many traders here have shown too great disadvantages of this method, maybe you need to think more about this method
The position in the UK is fairly clear - HMRC have issued guidance that crypto-to-crypto trades are taxable events for capital gains.