its really more noises and things that you can't see, like in bushes or something, when she gets spooky. And she gets nervis in new environments. But just in general , not thinking about her spooking, I feel like she needs a mental exercise I can do with her to get her relaxed or something. I don't know if anyone knows something like this. But I will definitely do some bombproofing sessions with her, that will probably help :) Thank
As is NOT throwing her in any 'deep ends'. I don't think 'flooding' - which is the behavioural term for it - is a particularly helpful to your relationship or the horse's attitude about scary situations. Just conditions them to 'shut down' generally.
Start with easy things, at a distance, getting her confident & blase with them first, before asking for gradually more/closer. I like to keep going backwards & forwards, with horse going in between me & the 'scary'. But as suggested above, if we found ourselves in a situation we weren't yet ready for, I'd be prepared to get off & put myself in between her & the offending... bit of plastic, cow, whatever.
I also teach my horses the 'one rein stop' **Note you need to *teach* this thoroughly, with lots of repetition, so it becomes an automatic response, not just attempt to force the horse's head around. This does have a bit of a calming effect too, but is mostly an 'emergency button' which enables you to control the horse effectively before or when they may start to panic & react.