I love making jams and curds. I should make a lemon curd again, a friend has a tree that's fully laden right now so I can get bags full of them. It's hard to know what you did wrong but there are a few things to take care of when you make them.
1) No water is needed, at all. It should be a combination of the fruit with the correct ratio of sugar, lemon juice and in the case of lemon curd, eggs and yolks (a ratio of 2 eggs plus 2 yolks is about right). Use a good recipe and follow it religiously - for instance,
this.
2) You need to give enough time for the pectins in the fruit to emulsify. You don't need a gelatin agent because it should naturally thicken, but it's a combination of the fruit pectin and sugar cooked over a very low heat for a sufficiently long time. Also, additional thickening happens in the fridge, so you can't eat it immediately - it needs a couple of hours to set in the cold. Even if it seems a bit runny in the pan, it will still settle quite a bit.
3) I suspect you were a bit too ambitious trying to do 3 jams at once, when you haven't made jam before. Slow yourself down, take a couple of hours, and make one single jam. It takes quite a bit of care, for instance it should be stirred very often with a soft spatula. Get the details right and then you can branch out.
4) Still looks frickin delish.