sv_cheats 1;sv_infinite_ammo 1;sv_grenade_trajectory 1;mp_maxmoney 65535;mp_startmoney 65535;mp_afterroundmoney 65535;mp_buytime 60000;mp_buy_anywhere 1;mp_roundtime_defuse 60;mp_restartgame 1

Download the practice file from here or source down below: https://www.prosettings.com/csgo-practice-commands-config/
Go to your cfg folder, normally located here:	C:\Program Files (x86)\Steam\userdata\USERID\730\local\cfg
Copy the file into that folder, change the extension to .cfg
Go in a private map (in-game), and open console with '~', type	exec practice-config.cfg
enjoy :)