I think it's good to improve trading skills if we are able.
Because to change the trading style it takes adjustments both in terms of time and thoughts. We have to be really focused and it takes a long time to understand the character of 1 pair.
Change the technique or add a new technique, it also needs adjustment.
The new technique will definitely come up with the term "new" again. If the technique is still simple and close to the technique we are using now, you can try it, who knows, it could be a complement to the technique we are using now.
But if the new one makes a mess, it's better not to do it.