General testing tips/enhancements

Hello,

I am a tester for a small company that uses Laravel as the framework for the backend. I have been working with this company for around 6 months and we have integrated a testing stage into the CI/CD pipeline.

I was wondering if there are any general tips to enhance the tests I am making (both front & back end). I want to assure the quality of the product is at it's best.

Any tips and general enhancements that could be helpful for me or anyone else reading will be greatly appreciated to improve our testing capabilities.