@caoimhesweeney hiya!! That sounds amazing i will try that! And when i walk her on the ground she is as good as gold doesn’t mind at all it’s only when I’m on her back that she just turns around and walks home

If using a whip, make sure you have a warning sound first before using it. Something like "Ah ah ah!" or "careful". Whatever it is, be consistent with it. If they ignore it, then give them a slap. Eventually, the horse will walk on with just the sound. It works for a chronic grass puller who has almost zero regard for those on his back. Your horse has to have a certain degree of respect for you. Some horses are worse than others and they can sense the rider as soon as their foot is in the stirrup. If they think they can get away with something, or with not doing something, that's what they going to do. If they think that they aren't going to get away with something, they'll not do it.

What you're describing is called napping. I agree with Lucy in that you have to make associations between napping and negativeness. Never stop at a gate, even when you're done for the day. Stop at random places and then get off. If possible, it might help to untack and let the horse roll so they associate stopping work with still being in the arena.

As for going out hacking, try changing up your routes. How is your horse if you take him for a walk in hand?

Hey Chloe
I know this sounds mean but try being firmer on her use a whip or spurs to make her keep going and make her listen to u.
If it’s bad like on jacks she reads up and stuff I think it would be a good idea to hack with some on else and not alone because she is more likely to go with the other horse and if she does do anything you have someone with u to make sure ur ok!

OMG I have EXACTLY The same problem 😂

My pony used to do the same.
It's not your pony being particularly 'naughty', it's simply their way of telling you that they want to go back, most likely because they want to get out of work as they know that they can relax in their stable.
Remember, a horse will always find the easier option. If she knows that she relaxes in her stable, she'll want to go there rather than be working in an arena or out hacking.
I got my own pony out of this habit by making the wrong thing hard and the right thing easy. In other words, letting them win by allowing her to go to the gate, but making sure that she works when she's next to the gate. It's your job to change her mind about wanting to go over to the gate, and if done correctly then she'll rather be as far away from that gate as possible.
As always, it's always best to work on the ground first. Ensure she knows who is in charge in your little herd of two by lunging her/roundpenning. Moving a horses feet communicates that you are in charge. Using a whip, crop, shouting, etc does nothing but nerve the horse.
After that's established, lunge her by the gate and ONLY allow her to rest when she's away from the gate. This way, she'll gather that the gate means work and away from the gate means rest.
Same goes when riding. If you can feel her wanting to go to the gate, let her, and work her in tight circles next to the gate. Only allow her to rest when she's away from the gate. Consistency is your best friend here. Repeat, repeat, repeat until she finally doesn't feel like she wants to go to the gate.
If you want anything to be explained further, don't hesitate to pop over a message! :) I'll be more than happy to help as I know how irritating this issue can be.

And if I try to get her to move from the gate, she would move backwards and throw her head. It’s becoming a real problem because I could be trotting around and then she’d just go straight to the gate no matter what I do, please help!!☹️