Try not to feel disheartened, Sven. It doesn't have to happen all at once (it shouldn't happen all at once) - increasing your muscle mass/strength first means that any fat loss happens slightly later on, rather than the saggy, deflating balloon effect I've always had from just not eating as much that makes a quick difference to measurements but does nothing to improve your health. And there's also the point that fat loss isn't just on the one bit you want it to be. Get into the habits and that makes it sustainable and the changes will come when you are too busy being active and healthy and happy to notice them.
I've got some more gym gear being delivered today at some point. Including some cycle shorts - not because I think they'll turn me into an IG Gym Bunny (laughs at the thought), but because they're going to be comfortable, cooler and are long enough to protect the softer bits of my legs from rubbing against one another. It might sound a bit weird, but there is something else to the purchases;
I've always just bought the cheapest thing that came in my size, so was generally in colours that I would never touch with a bargepole - even plain stuff seems to almost always come with pink and purple bits as though I can't be female and in a gym without them. This time, I've ordered stuff in 'my' colours (OK, what that actually means is green, dark green, forest green, dark army green, dark red....) to go with the other stuff I've got in the least offensive versions of black and with the smallest logos possible. In my head, that means I'm not putting on a costume to go and exercise, I'm me, putting on a specific variation of my normal clothes to do it, which means exercising/being healthier is also me. Trying to deliberately mess with my head, as it were.
Constipation - water, black coffee in the morning and abdominal work including stuff targeted at your obliques (so twisting, bending, stretching) and things to strengthen the muscles on your lower back (like laying on your stomach and lifting your upper half (Cobra yoga moves, for example) and lifting alternate legs and arms) to create a firm supporting girdle that helps things move along.
Fibre works because it provides bulk and something to absorb water. Without water, you just have more bulk sitting there and without muscles working, even with water, it all just sits there. And medicines can't work without water, something to move and muscles working.