is there any trick to help with spray control?

Try downloading maps in workshop like "spray control map"

There are Workshop Maps like Aimboz Spraycontroll

just practice on certain workshop maps and get your muscle memory to learn it

Try this guide, it helped me a lot with spray control: https://www.youtube.com/watch?v=wabU0hhTZEM

Every weapon is different, but I'd say those workshop maps work fine

you can download practise maps which will help you

Try using practice maps, and also go against bots or play death match and practice a lot it should help you in the long run

Also you can practice on Death Match or try to download map control spray in steam workshop. I was learning spray when i was playing in torunaments.

Use workshop maps. Thats what worked for me.