Advice to early competitive programmers

I participated in one online preliminary ACM ICPC regional contest from Dhaka, BD site. I have also competitive programming experience in UVa online judge, Topcoder (https://www.topcoder.com/members/survival07/details/?track=DATA_SCIENCE&subTrack=SRM), Codeforces, Codechef etc. From my those experiences, I am going to share some advice to be a better problem solver in competitive programming.