Hey guys. I'm new here, just joined and will try to be an active member. I like Karate and train for it too but I just have one problem that strikes my mentality directly. I'm 18 years old and I'm 57 kilos. The problem is I get to spar with tougher and bigger guys than me. Sometimes I let my hands and feet go but most of the times I'm getting seriously beat up. I've not competed on a Pro(serious) level yet. Haven't been on competitions and stuff but I've been training hard for a long time. I will start doing so in September. But this thing really does bother me guys. I train hard but 70 kilo dudes just beat the heck out of me and I do like the sport, I want to be successful here and I want to push myself to the limit but I'm getting seriously squashed. I've sparred with low-skilled guys of my weight and I always beat 'em up. Though I've sparred with only a few of them, I do have confidence and I believe I can do it in competition so I need some help, directed to the mentality. I get FRUSTRATED really quickly and I just think I want to give it up all, whilst I don't. Please help me out. It would be appreciated and any encouraging words will be welcome too. Thank you guys.