Kyaw,
I'm so sorry to hear of your misfortune. As you probably already know, the
United States and many other countries around the world are trying to get aid into your country. According to the Australian media, power is coming back on in many parts of Rangoon already. According to news reports, the loss of life in your country has been horrendous. That is so sad.
You mentioned having a generator but no fuel to run it. If it's a gasoline-powered generator, you need to stock up on gasoline (using 5-gallon storage containers) a couple of days in advance if the weather bulletins predict that a tropical storm is headed your way. You can always use the gas in your vehicles later if you don't need it for the generator. Buy several of those 5-gallon storage containers. We have ten of them now. And fill up the gas tank in your car or truck.
Following a tropical storm, you won't be able to buy gas for perhaps two or three days and then, once they start to open the gas stations using generators for power, there will be long lines of cars waiting to buy gas and it can take hours waiting on line. And then they may ration the amount of gas you can buy at one time.
Whenever you believe that a tropical storm might hit your area, stock up on bottled water, candles, flashlight batteries, basic food items (non-perishable), and gasoline in advance. It's also a good idea to have enough cash on hand, too, because you may not have access to your bank account for several days or longer because the ATM machines may not work, or the electronic network may have their hub located in a building that was destroyed by the storm.
We have a generator but we didn't have enough gas saved up in advance (only about 20 gallons), so I had to drive 50 miles away to the nearest gas station that was open and wait in line for two hours to buy gas. And many of the ATM machines didn't work for three or four weeks. At my house we were very lucky and our power was restored after only four days. Many people near me didn't have their power restored for four weeks and people 50 miles away in New Orleans didn't have power restored to some parts of the city for several months.
At my age, I have been through more than a dozen major hurricanes, so I know what it feels like. Many of my relatives have lost their homes in hurricanes and I have helped clean out homes that were flooded, so I know what that smells like. That was back in 1965 following Hurricane Betsy when I was much younger. I didn't help clean out any homes after Hurricane Katrina in 2005.
Good luck!