hello ..... i am currently studying for iit as well as class X ..... i need some study tips to crack iit-jee so that i could get the branch of aerospace engineering in iit

Well firstly concentrate on ur X so that u can score good and yes u have plenty of time to crack IIT. Simple study tips well fully concentra on ur 11 and 12 class it will help u more and more and choaching you are doing just revise all the things and practice  more.