Welcome to the forum.
Well done on your weight loss so far. You are doing brilliantly.
This might sound silly but you are not telling us a lot about yourself. You do not mention your height or even your gender and age... Sometimes these things can help us give advice - like when you mention that your weight went up for the first time.
It is important that you do not get disheartened. keep on working hard - and trust that the reward will come in time.
Hand held body fat meters can for instance be unreliable in their readings and there can be a load of reasons why weight goes up which are nothing to do with us getting fatter...
ladies for instance gain weight around the time of a period
people gain weight associated with how much sodium is in their diet or how much water they are drinking
food weighs inside us so things like our toilet and eating habits play a part
As for macros - if you enter your food into a tool like a free account from
www.fitday.com - you can see that it calculates out your calories - but also the amount of grams of things like protein, fibre, healthy fats, calcium and a whole host of vitamins and minerals. You can then compare these numbers with the RDAs which various authorities suggest would benefit us. Just like with calories - you can learn to build a food plan which hits the targets.
I suggest that you read the following thread - it may help you settle in and make friends
http://weight-loss.fitness.com/threads/57955-My-advice-to-newcomers
Good luck with your project.