It sounds as though you're approaching this as a task to get out of the way - it being gruelling and something you don't have the energy for. I get that (trust me - I'm a massive introvert with an illness that saps my energy and quite a full on job) but the point is is that it's supposed to be fun!
Have you ever felt a connection with someone whose company you enjoyed and you fancied, through work or on holiday or via friends? Have you had people who don't feel exhausting to talk to, even as relative strangers? I'm trying to work out what's missing - if you're just unlucky and haven't come across someone you click with because you're seeing it as the chore of "looking for a partner", or if you just generally have never felt that with anyone (which could mean something, or nothing at all).
I approached online dating with the mindset of "if I actively want to message someone (back), then food, the second I'm not interested or bothered then sack it off". So it was never a chore - the second it became a dread, byeeeee! That way I never met up with someone whose company I wasn't reasonably sure I'd probably enjoy, even if I didn't fancy them in person. For every ...I don't know, 20-30 people who messaged me/I messaged, maybe 3 or 4 of those would go past 1-2 messages and then I would probably go on one date out of that. I didn't let it take up my life or take time I didn't want to spend, because if was interested or felt a bit of a text spark with someone it felt like time I did want to spend, and if I didn't I just would not message back or politely say I wasn't interested, which takes between zero and 30 seconds haha!
I'd try something similar - keep your profiles active, keep an open mind, but stop seeing it as admin. You can scroll through your apps when you're commuting or in the bath or in the queue at the bank or whatever, but if nobody catches your eye or opening messages make you do the full body cringe that online daters are so good at, just ignore it. If you meet a single man though friends or hobbies, you'll know if you're interested in them pretty much straight away, even if it's just physical or on a really surface "I like what you're about" way. You don't need to pursue anything unless you get that feeling.
Good luck 😊