My biggest phobia is mathematics

My biggest fear is maths when I came into ssc cgl prep I was afraid of maths only & even now also I'm good at eng, reas, gs. I just found one channel on YT called 'Maths Mania' he uploaded one shot videos and that too for very little duration So my ques is should I go with that channel? Will it help m to score max marks in exam if I understand concepts from that video?