Well, the OP said his first bass is "worn out". That tells me it wasn't well made and the cost of repairs would be too high to justify. There are many basses, 100, 200 years old and more still in use. They may well have been worn out by now too, except they had a sound and quality to justify their repair over the years.
It seems the OP just bought another bass on par with his first one (I have no personal experience with these basses but this seems to be the forum consensus, so let me know if I am wrong about this). And he very well may have a similar experience with it. This doesn't seem like a very good plan to me. It has been said here many times that you either pay up front, or pay on the other side with money, hassle and disappointment.
You don't have to spend $1500 on a new bass if you take your time and look for a good, lightly used, quality bass. This story has been told countless times and the regulars here get weary. How about renting a good bass? Many shops will put the rental into purchase price.
Best wishes to the OP on his musical journey.