There are a lot of ways to save your money, and what i'm going to tell you is what i personnally do to save money.
1. Record your expenses - Make a list where you spend your money in a daily basis. Here you will figure out how much spend everyday.
2. Make a budget - after figuring out your daily expenses, make a budget. (I base my budget on my monthly salary so that is what i going to show you) also consider your monthly bills like rents, electric bill, water bill etc. Add up all your total expenses for the month, then subtract it on your monthly income equals your remaining salary.
3. Saving - now that you have a budget you can start saving. The remaining money of your monthly income will be divided in to 3 parts. First is savings, put atleast 50% of your remaining income on savings. Second is emergency fund, this is the money that you will use on a very unexpected expenses. Put atleast 20-30% in it. Having a emergency fund helps, so that you dont have to use your current money on your savings. Third is pleasures, put your remaining percentage in it. Nothings better than using your hard earned money on what you like. Doing this lessen the pressure on saving.
4. Monitor you savings - monitor your progress, knowing how much you save gives you the comfort and assurance that you dont have to worry about money.

This is basically it. Its up to you on when or how you will use your saving, you can invest it or use it on building your on business or whatever you want.

Hope this helps.