Yes you can overclock your CPU but you need to make sure that you have a good enough CPU cooler, motherboard and PSU. it is best do it in small increments.
motherboard MSI 760GM-P21 not sure about the cooling,but i check my temperature often so i can see if it jumps too high...how can i overclock it? i watched some guides but can't find those options in my bios xD
You just have to bump up your multiplier and your voltage (very slightly).