First off shoot both raw and jpeg, doesnt matter what subject you shoot, just keep them all (get 32Gb or 64Gb if u out of space). Use some of the free raw editor software and play with the adjustment or photoshop if u want a bit more advance. Then look at youtube and see how some some turn mundane picture into more wow shots.

After that then you can decide whether the extra space on raw is worth. Take note if u using sony kit lens, always enable lens profile in raw editor (if available) cause that lens has issue on the wide end if not corrected.

That's a misconception. Yes, highly likely most pros will shoot raw for editing purpose. But there are also pros who simply shoot jpegs. Case in point, those that strictly shoot B&W only, sports that require a huge buffer that only jpeg can keep up or those in journal assignment to upload picture fast to the news before anyone else.

Raw offers greater flexibility but not like that much which you can still edit with jpeg. I shoot both raw+jpeg, and find myself editing jpeg more cause the in-body camera already calibrate the colour to my liking from start. Depending on camera model which churn out different color profile, you will probably prefer just to do jpeg edit than raw. Only time I will recommend raw is when you find yourself in very challenging lighting situation which may require excessive tweaking.

But like I said before, it boils down to preferences which TS has to discover himself through experimentation than follow blindly what we say.