Welcome Aboard !
• Be aware that if your gun has a Match Barrel or is a CZ, striker Springfield, or other tight chambered pistol, then not every 147gr bullet offered for sale can be loaded for your gun. That makes 147gr a poor starting choice for a new reloader.
• WST and W231 are not generally shown for 147gr bullets because heavier bullets generally like slower powders. The loading manuals are showing what is preferred by the general population of shooters. Those faster powders can be used, but it's a specialty load generally reserved for competition, not general plinking. And too, the load range will be very narrow. Something like 0.3 to 0.5gr instead of the loads listed in your manual that are 0.8 to 1.5gr. That being the case, most of the people using those specialty loads 1) have generally been loading long enough to greatly refine their load process, 2) have lots of experience with their powder measures, and 3) are generally using high accuracy equipment. So again, your powder/bullet pairing is less than optimal.
► You'd be better advised to start with a 124gr bullet and W231. That's a classic pairing that any pistol can accept, and the load range is super wide so that beginner errors don't mean much. The likelihood of trouble in one or both of these areas is a genuine reality, so I'm just reporting where your education hurdles and safety limits lie.
You may be suffering under the false impression that all 9mm guns are made alike. They are not. There are HUGE variations in auto pistol chamber dimensions between brands. We'd really need to know your exact bullet and exact make/model gun to take you any further.
Hope this helps.