1. Play with friends or find a team. 2. Play with higher ranks. 3. Watch couple of games, try to predict every enemy's move, don't be discouraged to guess wrong, think how would you play in that situation. 4. Practice your aim and your smokes, 5. Don't play matchmaking, most of them are filled with cheaters, you'll see yourself improve in faceit or esea. Trust me, you gotta switch.