I have a am3+ it is really slow i want to get a new one and i saw some other cpus i want but idk if they fit in my motherboard i would love the ryzen 5 1600x is that possible if not what should i do?
What exact motherboard do you have?
What cpu do you have now?
The problem is there are no AM3+ CPU's that come anywhere near the performance of a modern midrange CPU. Moving to a modern cpu will require new motherboard/cpu/RAM and depending on your Windows licence you may even need a new Windows licence.
WHAT IS YOUR MOTHERBOARD? An FX-8350 would be a good deal faster than an FX-4300 but it doesn't do you any good if your motherboard doesn't support it.