There are so many factors to a tone that they're not happy with for beginners.
Sound advice in getting the bass set up by a professional and yes, many will agree in the wisdom of taking the Bass into a reputable establishment like The Gallery. 👍
However what amp are you using? If you've read anything here you'll know that even established players are struggling for a tonal package that they're happy with. Equipment is a factor for many. You're probably aspiring to a particular tone which even experienced players haven't mastered. 😕
Be realistic - it's going to take some tome for you to get the feel and response, not only from your instrument but also from your contribution.
Strings can be an issue - both new strings (too zingy) and old (too dull or thumpy). Read the numerous "your favourite strings" threads - there is no consensus.
Also you have new, fresh finger tips which will toughen up and harden over time. Your technique is (no disrespect meant) probably poor currently, again over time this will improve. 🙄
For now, get a sound basis for learning to play - a well set up bass, a good quality amp/combo and a realistic view in how much of the sound you are unhappy with is down to you.
I would consider recording what you sound like and listen back to this over time. Give it six months and you'll hear the improvement. You may even find that your initial concerns may not have been such an issue as you think currently.
A quote/ mantra that has served me well...