INFLUENTIONAL STREET SKATERS ONLY PLZ!!!?

so im 19 now and i suck at skatin lol. i can ollie pop shove it bu cant kick flip or do most big simple tricks. im constantly leaving skateboarding then returning. the reason i lave it is because i get frustrated with larning a new trick becue i cant land it or flip the board right. does any one have any tips or like things hat help them keep there head up and stick with skating and prctice practice practice even when they are having a hard time? ive hard people say it takes them 2 weeks to get the kickflip down then others say month but do they practice every day? thanx for your comments