Hello. My name is Krystian and I just have finish youth leader cours. The main skills that the youth leader should have is:
Effectife comunication - you need to be able to comunicate with youths clearly, you need to be in sort of relations with individuals, they need to know that they trust you and talk convident about their problems.
Time/activity organise - you need to know haw to organise time for youths. You need to remember that they are coming to youth organisation or youth club to have fun not to have rigoristic learning! You need to organise time to them that they will have fun so and they could learn something about god or something.
Leadership styles - You need to understund and fallow 3 main types of youthleader styles. Autocratic, democratic and laissez-faire
I think that's all you need! :)
Hope I helped! GOOD LUCK