How often should you reapply sunscreen?!

For the past few days, the sunlight has been strong enough to reach 35 degrees during the day.

It's so hot ㅠㅠ I apply sunscreen in the morning, but as I get active

It wears off, so I reapply it after lunch!

How many times do you all reapply? My friend said she reapplies it as many as four times.

I was worried I might be applying too little.

Summer is really tough haha