I pray but my mind wanders off to things like football, TV, work etc. So is there any point of praying then?
Prayer is judged based on action as this is what a person can control. Of course a person's mind should be focused on what they are doing especially when it is worship.
However, Allah is the most Merciful and is fully aware that Shaitaan will try and discourage you from praying and therefore he will use all types of distraction.
Therefore a person should stick to their actions as this means you are worshipping Allah even though your desires are telling you otherwise, and InshaAllah you will be rewarded for your patience.
Slowly, these distractions will start to go away and one will obtain satisfaction, so one must not give up.