General Discussionwhat can i do?

plz tell me what should i do in games like these.. i wanna improve my gameplay and carry these cumbubbles that i always get to my team to win

https://www.dotabuff.com/matches/2818361889
https://www.dotabuff.com/matches/2813753259
https://www.dotabuff.com/matches/2802746053
https://www.dotabuff.com/matches/2767235197