Hi and welcome!
I have worked with scales before when I was trying to lose weight, when I spoke with a few people in the industry, they advised me to throw the scales away, and just do regular photo's!
The first photo, choose a day, time and position in the house with good natural lighting. Stand in your underwear and face a long mirror. Take a photo front on, then side on, then if you can, from the back.
The second photo can be in 2-3 weeks in the same position, and time of day etc.
Then just compare the 2. You 'should' notice a physical change depending on your diet and the type of training you are doing.
As Robert said, you may be retaining water as you may be drinking alot more due to keeping yourself hydrated with the amounts of training you are doing.
I would advise taking photo's rather than going by what the scales say, as you have said, it becomes disheartening.
If you wanted to join in on the Muscle Talk January Shape Up Competition
, this may help you keep track and get you in the routine of taking photo's. It's a very supportive community within the competition and all over the MuscleTalk forum. Some users take the opportunity to write a progress journal documenting everything they do etc.
Just a little advice there :)
Hope that helps!