Are those patches from your natural nails or is it from the acrylic?
If its from the acrylic, it may be due to a few things:
- a low quality product
- your monomer to powder ratio is way off
- you are mixing monomer from a different brand with a different powder.
And because you said you are a new tech, you are still learning how to get a "feel" for working with acrylic. With practice and a good brain, you'll learn to get the ratio right between the powder and monomer and you'll learn how to place it properly on the nail to where seamlessly becomes one with the natural nail. That is why you are having a lot of lifting problems around the cuticle area also.
Keep practicing. Some people learn very fast. But Invest at least 3 months for acrylics, nothing longer than that.