Ever since I can remember being about 4 or 5 and being conscious of my belly. I know it's down to me to lose it, it's the hardest thing in the world and I know it's the primary reason why I'll be single as it's not attractive but like aaaargh
Difficult to assess you, since you have no RJ profile vitals whatsoever. Here in the US a kid can have "baby fat" up until around 4 or 5 and it's not considered a problem unless excessive.
Human males tend to accumulate fat around their stomachs. So do some other primates. It's thought by some experts to be a survival response, to store internal nutritional reserves, much like a camel does with its hump. For those times when food is more difficult to obtain.
Problem is, as our lifespans have extended, this tendency also has health drawbacks down the road. In a modern lifestyle with steady and reliable food supplies it's ultimately better to not keep a spare tire around our middle. And as you are additionally stating, it can also be a social detriment for someone 33, in Western culture.
The solution is well established: diet & exercise. Of course, easier said than done in some cases. Mine for instance, where aging & disability limit my exercise options.
But we don't know your stats. Are you exaggerating your problem, or do you need to take some drastic weight loss measures?