well its very easy to say, less so to achieve, beibg " well rounded also requires a significant investment in time
if you try and do these at the same time, allowing that actial free time to spend has a reasonable limitation, your reducing the speed at which you can become proficient at any one of them or if you stack them your adding years before you can claim proficincy at all of them
if your looking for self defence skill in the short term, then pick a likely scenario and train for it, as soon as you start adding less likely scenarios, then the whole thing becomes impossibly complicated and very drawn out
and then becomes an obsesion bordering on paranoia, ma should be life affirming, not take over your life just in case your attacked by .......