But I'm afraid to overclock my cpu, don't know what might just happen after the oc..
If you do that in the right way, you'll gain noticeable speed increase over stock clock..
for overclocking guide you can read this article..http://www.tomshardware.com/forum/259899-29-core-overclocking-guide
Just make sure you have a good heatsink (not stock) to make your processor keep cool while overclocking..
coolermaster hyper 212+ is a very good cooler for budget user..