The frequency of practice for doing lash extensions may vary depending on your skill level and experience. However, as a general rule, it is recommended to practice regularly to improve your technique and speed.
If you are a beginner, it is advisable to practice at least 2-3 times a week to build up your skills and confidence. As you progress, you may reduce the frequency of practice but it's still important to maintain consistent practice to keep your skills sharp.
It is also helpful to practice on different types of lashes and with different tools and products to gain a broader range of experience.
Remember to prioritize safety and proper hygiene while practicing lash extensions, and consider seeking professional training if you are new to the technique.