Thanks for the positive feedback
Being temporarily between jobs with plenty of spare time I decided to have a "bite the bullet day" and got up this morning with the determination to crack the F chord. All day I've done 15mins each hour to practice the F chord (plenty of decent breaks between) from 10am this morning through til 6pm tonight. Simple plan really, do 15mins then walk away for 45mins at least. By 6pm I was getting the F chord first time every time but it's been tough, I won't deny that, and in my own case it took a lot of effort.
Some may question why push myself so hard? For me it's a tough one to learn and I have no idea whether I could be working again at the drop of a hat (you know agency work can be like) so whilst I had the time and opportunity to put the hard work in I went for it. For all I know I could get a phone call tomorrow and be on long shifts that may limit my practice time so may as well get this one under my belt whilst time is on my side.
I'm a very happy boy with the progress tonight. Sure, I still can't form an F chord with any speed but I'll work on that in each practice session for a few minutes and it'll come. It's right what everyone says, hang in there and it'll happen