I believe my first ever lense was an Industar-22 f/3.5 50mm. Did I have some adventures with that - I think my six year old self spent a great deal of time backing into walls and cabinets
What I mean is I found the 50mm to be a little restricting, especially inside. Now if you consider that you'll be using the smaller-sensor multiplication factor, it will be far too narrow to use indoor. So, the 35mm should be perfect for you, performing as a 50mm - excellent and regarded as 'standard' ( at least at some point ) for both indoor and out.
George gave good advice, though! It might not turn out to be very practical, the 35mm.The 18-125 or something similar with a wider range might be helpful to you and using a flash to compensate for it's slower speeds can produce great results, especially if you're shooting NEF. Here are my thoughts, though:
Whatever kind of lense you have will not help at all in regards to what kind of photographer you are. Technique and experience, both of which come in time if you're interested in progressing your skills, will. The 18-70 didn't make my photographs any better then those I took with my 50mm; neither did the 70-200. It made them sharper, but that's nit-picking; I still found them boring and undeveloped somehow. My advice: get a 35mm and learn to work with it and around it, anywhere and everywhere. Learn to use the digital darkroom well. By the time that you see improvement and results in your work, you'll know what glass and equipment you need - and what you don't.
Cheers and hope I was at least a tad helpful.