Not enough weight?

Hi there everyone! So, I have a pair of 2 lbs weights, and a pair of 8 lbs dumbells + a pair of 10 lbs dumbbells that I bought about a month ago

Now I'm finding this weight to be slightly more easier for me so what should I do to increase weight without having to buy more equipment. Sadly I can't buy power blocks yet 😭 but how else can I make it more effective.