pls bro come down and listen to my advice,great read , pls remember it takes yrs to master chakra nature if u are not a genius or your not using shadow clones and that's for your basic chakra nature much less one that isn't your cough your unrealistic desire for mc to learn lightening release and don't say he can use shadow clones remember u need some one suppress the nine tails while his training so your stuck , combining the gates with FTG won't make any sense , u need good concentration plus fast reflexes and u can't do that with pain of the gates unless the character has great mental fortitude and from how u characterized your mc , I don't think he can do that , again it's implied that FTG is hard to learn ,if u want him to realistic have the mc just strengthen his body , chakra control, improve , train his wind Naruto and forget about lightening , academy jutsu , learn strategy , u getting top grades academic sector won't be neccessary the original Naruto is deadlast etc do these things until graduation , if u can get the shadow clones b4 grad go for it but u can't use it to train unless u have Yamato to suppress the nine tails . I say this so u can learn rasengan quicker , start the rasenshuriken early, make u using the FTG effectively more believable etc