Hello, I want to apply for a tourist visa, the thing is that I already applied in May of this year but it got denied because I don't have strong ties to this country, I am Peruvian but I've been living here in Colombia for more than 10 years with my mother and she works independently in her own clothing brand. I am currently a college student and with money that my grandpa gave me I traveled the last month to Germany by myself for a week (that money was meant to be for my trip to the US), in that trip I met a family of 3 from Chicago that stayed at the same hotel as me and went to the same tours as me too, we got along pretty well and they want to invite me now to the US where they live. I want to apply this month here in Colombia to visit them in November (where I have my break from college) before Christmas so I can spend holidays in Peru with my family. They want to give me an invitation letter specifying how we met and that they want me to visit them. I'm 21 years old.
Is it very unlikely to have my visa accepted since it got denied a few months ago but I went to Germany and I got back to my country of residence? An invitation letter would help?
The last time that I applied I had hotel reservations, a letter from my University saying how much my degree program last and bank receipts to prove that I have enough money and financial history of that, the consult didn't ask me for them, she just saw my passport and by that time I only had seals from Colombia, I think I have a better chance now because I have a seal from a first world country (the entry and exit seal from the European Union).
In the last interview I said that I didn't met anyone in the US but the second degree cousin of my mom that I haven't talked to in years. (Should I put in my application that I have family there?)
Thanks for your help.