To start off, sit and down and force yourself to learn the chords. Your fingers will strengthen up quickly but make sure you're using the correct finger for each string. Doing this will make chord transition way easier. It's really not that tough to learn (I hate it when people say crap like that, cause like, what totally is easy for one person might be hard as eff for someone else) the basic chords and if you can learn G-C-D you can play hundreds/thousands of songs. You don't really need a book to learn chords but if you don't get one you might wanna look up some simple jazz progressions to help you with your finger picking. Learning to pick or play lead wont make getting laid any easier but you'll def be glad you did it when after 6 months you realize that everyone and their mom can play simple rhythm guitar.