Make it easier
Using the STEP framework (Youth Sports Trust, 2002) can help keep things fun, engaging, and appropriate. Add safety zones to create an area where players can get a few moments to think. Change your pitch size if your players find it too hard to press the ball. You could reduce the size of the pitch to reduce the area in which the players have to go to press the ball.
Make it harder
To make the session harder, pair players with technical or physical differences. This will create new challenges for your players to consider.
You could make the pitch wider, making pressing as a team more difficult. Also, try overloading or underloading teams. A player could join the opposition if they score to create this scenario. Add time limits to create pressure on winning the ball back quickly so there is time to score.
Progress the final activity first by moving to a different set of rules. If a team scores a goal, they get one point. However, they then get the ball back and can score a bonus point. This is scored if they can keep the ball for six seconds without the other team making contact with it. The final progression for this activity is to have a regular game with no point system.