They also have a wireguard VPN service called 1.1.1.1 (with WARP). My understanding is you basically VPN into a cloudflare datacenter so you don't have issues with cloudflare IPs being blocked
I'm in Spain as well and it sucks a lot. What I do now is I go thorough Cloudflare 1.1.1.1 VPN (set up on my router). Fixes the issue and there is practically no latency or bandwidth impact.