There are a lot of factors and there is no one size fits all when it comes to personal development. You could be some sort of savant and 30 minutes a month is all you need. Music could be an incredibly difficult thing for you and 30 hours a day won't be sufficient. I'm going to bet you're somewhere in the middle of these two very extreme points - just like all the rest of us.
In general - 30 minutes a day is a good start. I've seen more than one source state state that trying to do marathon practice sessions are inherently less effective than doing short sessions. If the 30 minute limit is to allow your physical tools to develop, then keep it there for a while. Once your stamina builds a little, try doing 2 30 minute sessions in a day with some time between them to rest. Short, mindful sessions are way more effective than longer sessions when you are just gong through the motions. Eventually, you'll probably want to build to hour long sessions. A lot can be accomplished in an hour with a proper practice plan - and sticking to it. For me, depending on what I'm working on, my sessions will tend to run between 20 minutes and a couple of hours.
If you plan to gig, then you'll need to be able to play for 4 hours with short breaks every hour. So after you comfortable with hour long sessions, try to do 2 back to back sessions with 15 minute break. After that gets comfortable, try doing back to back to back with 15 minute breaks every hour. Then try the 4 1 hour sessions with breaks. Don't try to do this all the time; take several days between thee longer sessions. Even take a day off of practice at all once you start trying 3-4 hours at a time - I know I always take the day off after gig.
Don't forget to work on learning songs in between running scales and arpeggios. Much of your growth as a musician will be when you get to start working with other people. Once you know how to play say 20 songs, see if you can find others to play with. Learn their list and learn how to work with each of the other people. And doing nothing but exercises can get very boring very quickly - it's easy to lose interest. Learning new songs can keep things fun.
As far as recording/originals, thee is really no way to establish your timeline for this. For me the muse visits when she does (not so much any more I'm afraid). First, recording techniques are a whole other skill to learn, so unless that's something you already know, be careful about spending your practice time fiddling with your recording gear. Learn your instrument before you start exploring another skill. There's nothing wrong with collecting and recording raw ideas for later reference - just don't get caught up in the whole production of mastering a song right now.
And lastly, don't rush things. You'll learn things at your pace - there just isn't anything you can do about that. You'll hit several plateaus when you feel like you're not improving - it happens to us all. Don't panic, just keep at it. Sometimes just taking a day or two off will allow you brain to figure things out (it really is amazing what our brains do when we're not thinking about something). If you feel pain, stop. Rest and then try again. If pain becomes common, seek medical advice.
Good Luck and enjoy the journey!