Hello,

Yes if you have proper guidance and practice well in day and night and spend most of your time studying, solving lots of questions and solving previous year question papers then  yes you will clear JEE advance. By practicing alot of questions you will be able to memorize the topics well

Yes JEE Advance can be cleared in one years preparation and there are many example where students clear JEE advance with one year preparation and with good rank. Proper strategy and study material is the most important aspect to make it. Apart from that handwork is also important so Yes be positive and prepare for it.