Hey John and welcome to PokerStrategy.com
£2000 a lot of money especially in a relatively short amount of time. Hopefully we can make your next deposit in to the last one you will ever need to make and turn you into a solid winning player. It's not gonna happen over night though it takes a lot of hard word, time and practice.
What i would recommend that you do if you are serious about playing poker is set some money aside away from your normal living expenses something you can comfortably afford whether is £50, £100, £500 whatever but make sure its money you won't need for anything else. When you have this amount tell your self that this is your poker money, if this goes you will likely not play anymore poker isn't for you.
Next choose a poker room to play on. You say you are playing on 888 at the moment. Have you thought about trying another room out? If you follow this link it will take you to a list of our partner rooms. By signing up at any of these rooms, following the instructions carefully making sure you use the correct bonus codes you will be tracked to PokerStrategy.com this means that you will progress from basic status to bronze and then hopefully keep climbing the ranks. This will give you access to a tonne of extra learning material here on the site
Take a look at the tournament strategy articles:
http://www.pokerstrategy.com/strategy/sng/
As you can see there are some you can read with basic status but the higher rank you get the more advanced the material gets. It's the same for the video section too.
Probably the very first lesson you should learn is bankroll management this is what protects us from going broke and having to re-deposit. It's the most valuable lesson there is and we all need to learn it at some point or another. You can read more about tournament bankroll management In this article
Then just start putting what you are learning here into practice, get involved with the forum, make some friends talk about poker and strategy as much as possible and you will start improving before you know it.
Also don't take this the wrong way but because you have spent quite a large amount of money on poker so far this year maybe you could read this article on addiction and see if it applies to you, if not then happy pokering :): http://www.pokerstrategy.com/strategy/psychology/695/1/
Hope this helps, where are you from by the way?
Carl