As you'll see from this thread, you're going to get the same mix of confusing advice that you've already read!
Lowering carbs is a good idea. Especially if you find you get bloated after carbs.
All carbs are converted into sugar by your body whether they're low GI or not - it just happens more slowly with lower GI foods and so doesn't cause insulin spikes.
The best thing you can do to reset your body is to eat real food. Meat, fish, veg and good fats. Reduce your carb intake. Avoid diet and 'low fat' versions of foods - full fat is better for you, satiates you more and reduces the likelihood of snacking on sweet stuff. Avoid UPFs (a lot of food marketed as healthy is UPF).
In addition to the webpage linked to above, listen to a few podcasts.
https://open.spotify.com/show/20d1DidaxtMHwc14mG4sag
This is The Obesity Code by Dr Jason Fung Start with listening to the Energy Balance one.
https://open.spotify.com/show/62COiRrsNGEDpRwHyQWCaj
And that's the podcast by Dr's Chris and Xand Tullekan about ultra processed food.
they talk about how your body metabolises UPFs and doesn't recognise them as real food (which is why you (well I) could eat a 14" pizza to myself but actually have a very small appetite when it comes to real food!)
People will come on here and tell you it's 'simple calories in and out' that help you lose weight - fewer calories + moving more = weightloss. Actually, that's not true because our bodies are not simple machines. All calories are not equal and how your body processes and uses different calorie sources is different. Weightloss is 80% food and only 20% exercise. Although exercise is good for your health overall, it's your diet that has the biggest impact on weightloss. Your body also becomes more efficient on low calorie diets (which are miserable and unsustainable in the long term) which is why people end up putting on more weight than they lost when they fall off the wagon.
People used to scoff at the idea that weightloss is hormonal (because people use it as an 'excuse'). But actually weightloss is all to do with hormones. In its simplest form, all carbs trigger an insulin response; protein does in higher quantities but to a lesser degree; fat doesn't trigger an insulin response.
Insulin prevents your body from burning fat.
Which is why people have such dramatic weightloss results on keto. It's not because of a calorie deficit. If you do keto properly, then it you won't be in a calorie deficit and will eat between your BMR and TDEE. But it is hard to maintain so many people just cut down on obvious carbs.
Lower carb also has the effect of reducing your cravings for sweet stuff because your insulin doesn't spike, your appetite becomes more regulated so you lose those painful hunger pangs and many people find it reduces their taste for very sweet stuff.
A pp is right. You need to find an approach that works for you but given what you have said about bloating after pasta and having a sweet tooth, I would at least listen to the Dr Fung podcasts.