OP, the first 6 months are the honeymoon period. The best a relationship is ever going to be. You're both in love, high on endorphins, on your best behaviour.
This sounds like a catalogue of misery.
Your partner is meant to make you happy, put your needs first, be considerate, love you.
Are you happy? Does this man make you happy??
He sounds awful:
I have always felt very anxious about it - why? Your brain is trying to tell you this is wrong for you
But on many occasions I have noticed my needs are never a priority - they should be
He has a short fuse with me not with others - so he can control his temper, he chooses to act badly to you
I have to be very careful what I text, say or when I call. It is always on his terms, his time. He is keeping me on an arms lenght from his friends which I never met and family. I know he lied on number of occasions. - lying already, walking on eggshells already?
He became very cold, distanced himself from me - game playing. Doesn't give a shit that you're upset.
If you love a piece of shit excuse for a man like this, why? Don't you think you're worth more? Because you ARE.
I'd dump him and block him. No need to tell him why you're ending it. his behaviour is completely unacceptable.
Don't let him come crawling back. Then do the Freedom Programme - freedomprogramme.co.uk/