In reply to BloodyJam:
> Most people seem to be a little negative about training and opt to climb loads.
Depends on the training. Although building up trad climbing experience is obviously the best way to get good at trad, it also means spending the vast majority of your climbing time not climbing. If you're climbing with someone who climbs at a lower grade, you're doing almost nothing that's going to help improve - the only bit that pushes you is the crux of the one or two hard routes you've done.
Personally I like to think in terms of technical grades and what I've got 'in reserve'. If you want to climb E1 on grit in different styles, you need to climb 5a above a bad groundfall, bold 5b (potential hospitalisation), sustained 5b (rarer), and short, sharp protected 5c. You also need to be able to highball 6a. So you're going to want to be regularly climbing 6a moves, and probably able to work 6b moves on a lowball boulder.
There's very little stamina involved on grit, only the odd route where some fitness comes in handy, and power-endurance is as good as useless. Grit usually involves standing around on ledges and then having to do something bold or hard to get to the next ledge. So basically training routes indoors is just a waste if time for grit, but bouldering is really handy - indoors for strength and outdoors for technique. Being able to boulder V3 (high, committing) and V4 (lowball) is a good level for E1 on grit. Plenty in the bag for bold routes, and the necessary strength and skill to deal with a tough crux.
Different kettle for limestone though, where the ability to pull 6a moves near the ground is unlikely, and more fitness is needed.
If the OP can't do this, I would suggest getting to that level.