When you get that feeling like "I can't let it end like this!", that's when you should use a V-Reversal. Practice it 100 times, and then you'll be able to pull it off in your sleep!
Your objective should be to raise a single character to level 30. There is great meaning in accomplishing what is difficult. To find your answer, you must set your sights high.
Ah, your 100th Ranked Match victory. That look in your eyes tells me it was a fulfilling battle. Go forward one step at a time, and never forget this feeling.
Collect 30 replays, kid. Once you've done your prep and know your opponent's weaknesses, you'll be in control of the fight. Don't risk your life by rushing in blind.