It's perfectly okay. Just don't overdo it. It can look like shorthand writing. Connecting the phrases with conjunctions is the easiest way to make it less repetitive. To be honest, I can't really think of a short, normal sounding way to use that many self describing sentences next to eachother. I guess you just have to expand the writing more. All depends on the formality. I'm 30 years old, living in Ethiopia. I'm President of USA, and I'm looking for penpals... Maybe rephrase to use "I'd..."