i am having mass 6kg.in context of e=mc^2,i want to know can i be converted into energy.if yes then how?

Mass can be converted to energy, but for this process, you need to consider the mass at subatomic level, for example, energy is produced inside the sun by conversion of protons into energy by nuclear fusion reaction. Another way could be the collision of positive charged particles with the negative charged particles at high speed to give energy.