hello everyone need some advice iam useing slic3r and trying to get the best quality print i can anyone know how i can solve the lines and get a better quality print

You will always have visible lines with our 3D Printers. You can use a smaller nozzle and then print thinner slices. But they are still there, only smaller.
-Olaf
PS: Haven´t tried it yet, but maybe you can use an iron to smooth the Surface? Put some paper between, or the PLA will stick to the iron...
- Try on your own risk-

Post-processing:

Acetone with ABS