How To Make Manga With No Resources ? & What Do You Need To Make One

I have a story and my art is decent ( still improving ) , I don't have a drawing tablet or anything , even going the traditional route all I can get is some printing paper , markers , shading pencils and blending Stumps

I am saving up money to buy some stuff but its still going to take some time and I don't even know what to buy either

But I still want to make a manga and enter some competitions that might give me a monetary boost

Should I try to make manga or stick to just improving my art and story ?

If yes then how should I go about this ?

P.S. - I have some money that I can spend on supplies right now so if it's only 1-2 things I could probably afford it