If this is only the second model you've ever built, you're heading in the right direction. My advice would be to slow it down a bit and really focus on the basics, because this hobby is all about repetition of those basic skills. Dry fit everything and double check your instructions and references before commiting it to glue. Really learn to disect your instructions and take the time to question things - what is this part and why/how does it go there? Above all, don't get frustrated. Everyone makes mistakes, but we learn from them and each build gets a little better as a result. You're doing well there, so keep at it!