in my tennis class (for school) i rush the net when i feel confident. but the other guys in my class will almost always lob me except for about 3 people. how can i combat the lob that goes behind me when im hugging the net? im all the way up, but they get the ball on the service line or something near there. should i just haul butt back to the baseline? i know thats probly what i should do, but i really suck at overheads. im probly gonna need to practice more because i dont want to take any more lessons.