Conceded

I'm only 16.... I don't know anything about these things... I haven't had any tax returns my whole life. I haven't had to do any of this so idk what to do... I do not make more than 20k a year. So... does that mean I don't have to pay taxes? I'm confused at what the 20k a year thing they said is about.

I had to fill out a W9 form to be able to continue cashing out my lindens to USD, I've done everything they told me, but I still do not understand what that is. Does it mean I have to pay taxes at the end of the year or something? They sent me a link and it said " For U.S. residents with 200 or more L$ sale transactions with a total amount of gross proceeds in excess of $20,000 in a calendar year, we are required to file a Form 1099-K with the IRS reporting those transactions for that year." Does that mean that I will only have to pay taxes at the end of the year if I made 20k that year? I'm so confused about all this tax stuff... i'm still in high school so I don't really know much about that stuff... What is the W9 form? and why did I have to fill it out? Will it change anything for me? Will I be in debt or anything? I'm so scared... Please tell me as much as you can about this form... because Idk anything about it. Also... SL is really my only source of income right now... i've never had a job before because my parents just want me to focus on school.

So I was wondering if I am able to buy a dae mesh template from marketplace and use it as a starter mesh in blender and fix it up and sell it with full permissions? I bought a mesh and the terms are: 1.You may not re-sell or give away the mesh templates with full permissions. 2.You may not re-sell or give away the work resulted from the mesh templates with full permissions. So if I bought it am I able to put it in blender and fix it up and make my own dress? using that mesh as a starter? for example I bought a long dress that was to the ankles but I made it shorter up to above the knees and I made it backless and changed some other stuff about it and it looks like a new dress. I made my own UV, Shadow map, ao map, ect. for it also. So it was like I made it from scratch but I just used her dress as a starter to help me out a bit. Can I still sell the mesh that I finished and spent almost a whole week on, working on it, with full permissions for others to buy it? It's not HER dress that i'm selling it's the dress I fixed up to make it look like a whole different dress. Also I think the terms are just meant for texturing... it never really said anything about changing it up and making it look like a new dress in blender.