If you want to be good trader then it is advisable to learn chart reading and learn some strategies through various free sources then its upto you but i would recommend for atleast one month use demo account to start your journey in crypto trading as you will soon get experience related to heavy manipulation in crypto market then it will upto your skills and research to increase your profit. As for mentors i dont think you will need them as those who are really good at it will charge hefty fees for teaching and they might not teach anyone as they dont need it as they are successful.