I dive solo nearly all of the time, (actually we all do cause one can never rely on your buddy) but my buddy’s and have a same water buddy policy we enter together and then split up... Know your skills, self reliance (reduncies), and comfort levels. I prefer to forgo having to keep track of another diver in the water and enjoy the peace and quiet of my own bubbles. Get some solo training of your choice and be safe, and enjoy, (I know my views will not be accepted by most but they are mine).