Ello all!
BOOP it's so easy, especially over the summer, to take your eye off the ball a bit and drift away from the good habits you'd got into. Especially when it's all "aaaah fuck it, we're having decent weather for once, let's make the most of it, it might not happen again for years / it might be over by next week / it'll only be until the end of August" etc. As Kick says, you've done it before and you'll do it again. I must say I'm surprised though, you seem to be running like a champ - I keep seeing people out for a run in the blazing overhead 32 degree sun and feel faint just looking at them. I'm a total wimp.
Koko I think you're right, 300g is in the region of a normal blip, it's just really driving me round the twist that I've spent the whole of July trying to get back down to goal and my weight is stubbornly dancing around on the spot! My first weigh-in of last month I was 2 kilos up; then I lost a pathetic 1.5 of them in a Golden Stint; then gained 300g back; then lost 500; then gained 300 
Some of that is explicable based on socialising etc. but it all feels a bit random at the moment. Earlier this year I felt like I had a real handle on things - not just keeping my weight steady, but knowing fairly well how to control things when they spiralled, etc. Now I never know what to expect when I get on the scales.
shalli welcome to the thread! I'm not actually opposed to a bit of a "crash diet" to get things moving (i.e., to quickly drop a bunch of water weight and motivate yourself into good habits - not to starve for a month, lose a stone and then lose the plot and order thirty pizzas on the trot). However, as BOOP says, it's just a matter of restricting calories, and whatever this aloe business is, it'll still be an aid to calorie restriction, so please please don't spend any money on it. There are lots of ways to make extreme calorie restriction bearable; some people like juicing, some people like those protein shakes, some people just sip broth, but all of it is to distract your mind and body from the fact that you're consuming very few calories, none of the methods are doing anything more than that.
I remember someone coming on this thread (or maybe it was another one) saying they were doing the leek soup fast (which is where you make a basic broth of leeks in water and only eat that for the best part of a weekend) from the French Women Don't Get Fat book, and said "please tell me this works because I think I'm going to be sick, it's so disgusting!" It really made me laugh picturing the poor woman pinching her nose and grimy chugging down this broth - she seemed to have got hold of entirely the wrong end of the stick and thought the leeks had some kind of magical weight loss properties, rather than that they have about 7 calories each, so if all you consume all weekend is leeks and water you'll inevitably lose a couple of pounds. The broth and leeks is just to keep your tummy quiet and make it bearable, so if it's making you gag, it's hardly doing its job.
Personally, I had success kickstarting my weight loss by simply consuming as few calories as possible, but in normal food. I recommend this because the trial and error gives you invaluable knowledge of what works for you. I discovered, for instance, that making a huge green smoothie was a great idea, because you can have a sip every time your tum starts to twinge, and it can keep you going all afternoon; also that eggs are miraculous, a single one is remarkably filling for about 80 calories; that carbs are a ridiculous waste of calories as they leave you feeling empty and hungry again within 20 minutes; that miso soup and tonic water are weirdly satisfying; etc. The rules probably won't be the same for you as they are for me but after noodling around with calorie restriction for so long (I started out just playing around with 500 calories on the 5:2 diet) I am now a total pro at keeping my calories really low without suffering too much, and I believe that skill has been the single most invaluable thing in my arsenal for maintaining. I've more or less maintained my weight for a year now, and I think if I'd just crashed down to goal weight I would have had no idea how to keep myself there, or to get myself back there quickly after a period of indulgence.