Next step to chess mastery ;)

Im an amateur chess player  Im 33 years old .currently my blitz rating on chess.com is 2100. I want to improve even more on chess . Ill create opening repetitorie with white i play mostly 1.e4 

with black for 1.e4    ill try 1...c6  1....c5 (najdorf or kan sicilian) or  not much 1.....e5 . For 1.d4 ill play 1....Nf6   and QGD or nimzo structures or sharper KID structures simply ill like to fun after 1.d4 and ill try many opening .  For better improvment  i  must choose. I think about nimzo/queens indian defence this is very solid i think and good for future. Id like to attack and  players  Tal Geller Kasparov MVL games. Im study chess classic games. In wich game stage i should focus on work more on middlegame and tatics or try to improve my strategic positional skill i need an advice of more expirienced players . Ill paste some of my chess blitz games winning and losing please some comments about  topic or games. Id anayse my games after it with computer engine and try to improve my play .How to improve my training for better results more practice or more analysing my mistakes?