The most common way to produce an album is to simply write a number of songs — either alone or with your band in your rehearsal room –, to book a studio and to record them, to mix them, to decide in which order the tracks should appear on the record, and to finally master everything.
That’s it!
And nowadays you may even do most or all of this at home, and so this is what many amateurs simply do.
Some great albums have been created that way — and if you’re really lucky, then you may be able to produce a great album that way too. But chances that your album will be mediocre and that it will a never have any real impact are immense.