One thing I would do is understand the industry. The beauty industry is limitless, you an be average or exceptional, both are acceptable and will allow you a career. I have managed and trained hairdressers for 20 years now. It is a fantastic industry. But after you graduate from beauty school, the real work starts. You will want to apprentice and learn much needed skills and techniques for the first 2-3 years after graduating. Study hair heroes of past and current.
Do you want to specialize in cut or color or both? Who inspires you? Do you want to do editorial or run way work? Practice, play, learn.
A great stylist is always learning, understands references.
Start making a look book of inspiration, visuals, styles that inspire you. Think different decades.
The beauty industry is extremely fun, and creative. Aside from skill and having vision, communication and listening is a HUGE part of this industry. Selling yourself, your vision and your skill.
Hope this helps,