Cleanse your system first. The Master Cleanse is a good start if you're just having digestive issues. Many people can eat "cleaner" and more raw after that especially if they go after 10 days. It's popular with the beginners because it's so easy. Besides the forum on here for it, read some of the FAQs and messages on themastercleanse.com
And buy a juicer and juice your veggies and fruits if you want. Activates all the enzymes and it bypasses digestion without the fiber. Fiber needs to be digested; not juice. Eventually as your system gets cleaner, you'll be able to digest eating them raw.