I have been to many chess tourneys. On the 14th December I have to play a chess tournament which has 8 rounds and has a time control of 25 min+ 5 sec increment. I have not played a tournament with such a big time control since about 2014(The last tourney I played in was 10 min per side). Any suggestions on how I should prepare? Just for your information, I am an eight-grader who can't really devote that much time to chess. So how can I play really well in the tournament?Please help!