I sew my daughter’s cttepmioion ice skating outfits and while I am not an expert by any means I have a lived with stretch material for years now!First, one problem that you may have is that you have only two way stretch material. Take you material in hand and pull and then turn it and see if it pulls just as much on the other side the opposite side but the (what’s the word?? AHHHH) adjacent (?) side. Anyway, some fabric will stretch almost equally on all four sides and some wont. If they aren’t then have two way.If you do have two way you can still make this into a dress you just need to look at which way you want your stretch to go. For instance you don’t need your stretch to go from your shoulders to your knees you need it to around your body so just take in cutting your pattern unless it is a pattern fabric and that might pose some problems.Next when you do sew it you don’t need stretchy thread you can get by with a regular (not serger) machine and just use a zig zag stitch. This stitch allows for the stretch and will stop most of the breaking but sew it one way then flip it and sew it the other way to finish the seam. This will make it more comfortable to wear and stronger as well.Some of the other answer mentioned a serger and oh my goodness, yes, I serger will make your life so much easier but if you don’t have a serger it really is still possible to work with stretchy fabrics if you have a ball point or a stretch needle in and there is a special rolling foot that makes it much more sane also. You get less problems with grabbing if you use that roller foot.Best of luck to you.
Tuesday.
Needs Rounded Corners 
lol
Haha, it’s the script to my life!
Improvise!
I sew my daughter’s cttepmioion ice skating outfits and while I am not an expert by any means I have a lived with stretch material for years now!First, one problem that you may have is that you have only two way stretch material. Take you material in hand and pull and then turn it and see if it pulls just as much on the other side the opposite side but the (what’s the word?? AHHHH) adjacent (?) side. Anyway, some fabric will stretch almost equally on all four sides and some wont. If they aren’t then have two way.If you do have two way you can still make this into a dress you just need to look at which way you want your stretch to go. For instance you don’t need your stretch to go from your shoulders to your knees you need it to around your body so just take in cutting your pattern unless it is a pattern fabric and that might pose some problems.Next when you do sew it you don’t need stretchy thread you can get by with a regular (not serger) machine and just use a zig zag stitch. This stitch allows for the stretch and will stop most of the breaking but sew it one way then flip it and sew it the other way to finish the seam. This will make it more comfortable to wear and stronger as well.Some of the other answer mentioned a serger and oh my goodness, yes, I serger will make your life so much easier but if you don’t have a serger it really is still possible to work with stretchy fabrics if you have a ball point or a stretch needle in and there is a special rolling foot that makes it much more sane also. You get less problems with grabbing if you use that roller foot.Best of luck to you.
We need more insights like this in this thread.