McGrath, You are never too old to learn, After playing guitar for near 30 years I found a song with a Csus in it the other day!

Claire, It has to be practice I'm afraid. However, Try starting out with chords that have minimal finger-positioning change A-D or Am-Em til you can do it without looking. Then build up to say Am-C and then to more complex finger changes such as C-G. Then add in a third change say Am-C-G or C-G-D. Hey now you can play a whole slew of tunes!

best of luck AWM