You should probably look up what other people do and connect with them. Like worker's unions, charities and non-profits, people with influence. The big part of "organizing" is connecting with people. So call them, go to their meetings, find individual supporters for your cause, or whole groups who are willing to collaborate with you on topics or the whole thing. Once you have a few hundreds or thousands of supporters, do meetings. Let people talk and discuss their ideas. Form a plan of action and who does what. And once you have a proper organization in place, people to do the various jobs, interconnections which allow you reach lots of people, you can start with the organization of the general strike and the simultaneous protests spread out through the country. But at that point you should have the acceptance of every major union and their promise to back you with their members, plus lots of other people who are ready and waiting for you to give the go.