I'm 24 now. If I join in this field (like cabin crew or ground staff), where can I see myself after 5 or 6 years in future?

Down the line in about 5/6 years, you may be working for any reputed air career as a cabin crew in-charge, where you will be supervising the cabin crew on any national or international flight and will be the wholesale responsible for all the cabin attendants. This responsibility will also add to you