L2TP vpn on mikrotik

RouterOS Beginner Basics
1

Hello. I live in a country with very restricted internet.
I have tried running l2tp in mikrotik device running routerOS 6.47.8
At the top of the interface it says it is connected (attached picture). Using whatsmyip and others it shows that my ip has changed to the connected vpn server. But i cant access blocked websites and get a connection timed out error.
I have run these commands to route the traffic through vpn interface:

/ip firewall nat
/add action=masquerade out-interface=l2tp-out1 chain=srcnat

/ip firewall mangle
/add chain=prerouting action=mark-routing new-routing-mark=l2tp passthrough=no
src-address=192.168.88.0/24

/ip route
/add dst-address=0.0.0.0/0 gateway=l2tp-out1 routing-mark=l2tp

My router is connected to a 4g modem directly.
Does it have to do with DNS settings? I tried setting it to google dns from ip>DNS servers but it didn’t help.
1.png

2

Update:
When i set the DNS settings on my pc (1.1.1.1 or google) then I can load blocked websites. But setting it in the router, while does show up in ipconfig, does not work.
My Ipconfig when DNS set in router:
DNS Servers . . . . . . . . . . . : 192.168.88.1
1.1.1.1
1.1.1.2
When loading websites that are not blocked I can see the traffic going through the l2tp interface. But blocked websites won’t load. Somehow although the DNS setting from the router does show up in ipconfig, but it has no effect.