As many have already said, there are a lot of resources to help you improve.
There are many good books but you should be careful when buying any. The different writers all have different styles, some go into great depth on Poker Math, which is important, but if you are not particularly mathematically minded these books can be confusing when you are a beginner, save those for the time when you have grasped the fundamentals. If you can, read a little of any book that you are thinking of buying. If you belong to a library, you might be able to borrow the books for free, if not, sites like Amazon, and I'm sure there are others too, have a "Look Inside" feature that allows you to read a small part of many books. Whichever way you do it you should try to make sure that you can get on with the writers style.
There are lots of Poker Forums
like CardsChat that have tutorials and articles on strategy. Join a few till you find one that seems to help you most.
There are absolute shed loads of videos on YouTube, some of them are part of training series and some are better than others. Try to find a series where the presenter explains why they are doing what they are doing. I personally like the ones by 'Gripsed' but there are lots more. Once again it is important to find ones where the presenter doesn't annoy you in some way.
A couple of people have mentioned analysing your play, which is fine and very important, if you know how to do it properly which is much harder when you are a beginner. Once again YouTube can come to the rescue. There are several videos on 'Hand analysis' on there.
All of these things take up a lot of time and you haven't played any poker yet. That is the most important part of the learning process, you have to put into practice the things you have read about or seen. There is a story about Arthur Rubinstein ( a famous classical pianist, in case you didn't know). Apparently, he was approached in the street near the Carnegie Hall in NY by a man who asked, "Pardon me sir, how do I get to Carnegie Hall?; to which he replied, "Practice, practice, practice!