In reply to Voltemands: Most people don't climb anywhere near their technical limit on trad. For most mere mortals fear holds you back (and in many ways that's good). The most important thing is to be safe and enjoy it.
It sounds like you are doing the right thing in relation to making sure that your gear placement is the best it can be (as when you do fall you will realise just how important that is).
Last year was my first proper trad year and I took 3 decent lead falls - two off of the same climb, a VS at Subluminal called slip road.
The first time I fell I came off at the top of the crux section having run out of steam (due to having faffed around under the crux for 20 + mins. I fell about 10ft into air with no ill effect).
Looking back that fall was one of the best things that happened to me.
It gave me confidence in my gear/placements, and made me realise that you can fall off. It also gave me confidence to push myself more (I went back and flashed the route a week later).
It was a good route to fall from as it has loads of bomber gear just below an overhanging crux section (so you fall into space).
I see that you've climbed recently at Swanage, if you go there again try Transcript direct (overhanging corner with tonnes of bomber gear and an ace climb) also Ledgend Direct at Guillemot (again more bomber gear than you could carry with a short overhanging crux).
Also another way of getting more comfortable with falling is to take a few on a climbing wall (it does wonders for your head).
But I suppose that the bottom line is Try not to fall off unless you can't avoid it, but don't let your fear hold you back too much. Most importantly stay as safe as you possibly can - good luck