Since you're playing for over a year, I guess you're familiar to the basic chords on the first three frets, like: C - D - E etc. Switching from one chord to another should be something that goes naturaly. Simultanuously you can learn some patterns... to me this was the way to go. I don't know how advanced your picking and chord grabbing is, but here is a cool pattern to practise: (not to hard)
4/4
C (or any other chord, mind the bass)
--0---------------0-----------------
----------1---------------1---------
------2-------2------2---------2----
------------------------------------
--3---------------------------------
------------------------------------
Try to play this fluently and try to switch some chords eg:
C - G - Am - F - C - G - F - C
Now sing along: Let it be

(chorus not included)
When you've got this pattern in your head and you feel comfortable with the chord-switching you can make endless variations with this like: hamer ons, pull off, loose notes in between, etc. etc...
Hope this is helpful as well as encouraging