Yes you can control your dreams, I do mine about once a week, it’s a good way to get some of your fear under control, it’s called lucid dreaming as @ETpro has stated, it’s about waking yourself up in dream state, which can be difficult to do at first, you normally need a ‘snap’ something that makes you realise you’re dreaming re: flying, looking at your hands, spinning, all these things are my snaps – and then I sit in my dream for a bit and look around at everything, then decide what I want to do… eg : I am a singer and had a gig coming up, I made a stage and put myself on their with a microphone and sung my heart out, I have a guide that I’ve met in my dreams as well and I can talk to him about my anxiety and to be honest, it’s quite amazing – it’s your subconscious and your subconscious is far more intelligent, empathetic and aware than your conscious.
Try it… if you need some more help message me – I have plenty of things you can try and do, i’ve been LD now for about 1 year – not long but I’ve become really quite fascinated by it’s psychological implications…