Firstly I would suggest going into >Settings >Edit >Players >Edit Players. From here select the team you wish to play with (I chose Manchester City) and boost all the sliders on the forwards you intend to use. This will make it faster/easier to score your first goal. Make sure you remember to >Save before exiting the Edit Menu.
Now go to the main menu and into >Kick Off >Local Match >Select you chosen team >Select a low rated opponent (I chose Wycombe B in the English 2nd Devision) >Game Plan (include the forwards you edited earlier) >General Settings >Match Level - Beginner >Match Time - 5 min.
When the match starts you should be able to score from the kick off. After you score you can pass the ball back to the goalkeeper and wait for half time. The opposition will leave you alone if you're stood still with the ball at your feet. After half time simply regain possession and pass back to your goalkeeper again. Wait for full time then click >Rematch >Start Match. RINSE AND REPEAT 🥱
As the other guide states, you can check how many games you have won by going to >Settings >Options >VS COM Record. The game doesn't show any online wins, so you may unlock the achievement earlier if you have some wins online.
This achievement is tedious. But using this method you can be doing other things for 5 minutes at a time while waiting for half/full time to come. I hope this guide helps. Good luck :)