I get asked what I think about weighing yourself when it comes to tracking towards your goals. I DO think it’s important to track data points๐Ÿ“‰ to both help you understand what’s working and what’s not, but also to help keep you accountable. 
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HOWEVER, weight does NOT tell the whole story. In my case, I was previously 143 lbs and 21% bodyfat, and now I am 143 lbs at 15% bodyfat. So, I track multiple data points. For me personally, the best indicator of progress is how your clothes fit.๐Ÿ‘™ 
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You know your’re on the right track when they feel looser and maybe you’ve strayed from your goals when they get a little more snug๐Ÿ™„(unless you are trying to gain weight). But, you also need hard and fast numbers to make tracking your progress more black & white. The data points I prefer to track are weight, bodyfat %, and inches. 
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Depending on your personality type and goal, you may want to track this weekly, every few weeks, or sometimes daily as you get closer to achieving your goal or the closer you get to an event or deadline you have set for yourself.
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One really great and fairly inexpensive tool I have in my arsenal is a Renpho scale that comes with an app that tracks, not just weight, but also bodyfat %, bone mass, BMI, body water, visceral fat vs subcutaneous fat, BMR, and a bunch of other really cool nerdy stuff ๐Ÿค“
Here is the link if you want to check it out:
https://amzn.to/2TzVYTM
What data points do you like to track?