Versatility is an extra string to a player's bow.
I want to thank the Arsenal fans who've always supported me. But I can't apologise for my decision to leave. I want to get more out of myself. I felt the main thing was taking myself out of my comfort zone. That's why Liverpool shouted out for me.
When I've watched teams that play with five at the back and wing-backs, I've looked at their starting positions and positions out of possession because that comes a little bit more unnaturally to me.
Spain have got a big influence from Real Madrid and Barcelona, and when you watch Spain play, it's almost like watching Barcelona or Real Madrid at times.
If there's a shot on, I like to take the opportunity as well, and I like passing the ball - which is one of the reasons I came to Arsenal. But I'm a player that likes to come up with an end product - whether that's a goal, an assist, or helping the team to get good results.
I think I play with no fear: I run at players regardless of who they are and try to make a difference.
I'd be lying if I said there weren't times when I hadn't lost a little bit of confidence. But the people around me, close to me, were the ones to tell me I'd been playing slightly differently, not as confidently as I had been.
Playing in a team like Arsenal helps massively having all of these players around you giving you advice. When they are playing well, you feel comfortable, and it helps you to play well, too.
To do well at a new competition, you need a lot of good performances.
I'm so excited to be joining Arsenal. It's a fantastic club, and I'm really looking forward to the opportunity of playing football at the highest level.
Arsenal have a great manager in Arsene Wenger, top quality players and an attractive style of play. These were all important factors in me choosing to sign for Arsenal.
In the long run, it's probably better to tie yourself down to one position and really become established in one area to be as good as you can in that position.