It took me years to get to find people to go out with before Facebook and WhatsApp as I am not in Spain permanently and kept missing people that I had met previously. I now belong to several Facebook groups and a WhatsApp group but not in your area.
If you haven't already tried suggesting a Meetup somewhere suitable and convenient for you I would try that. It might be daunting but if you don't try you never know. I know that a few people went to Alicante from Torrevieja a few weeks ago so Alicante wouldn't be too far for you by bus.
Worth giving it a go - good luck