I have a few tournament rules.
1) People seriously need to stop wearing those massive headphones, I mean wtf yes yes well done you "like your music" and you can afford sick headphones which drown all the surrounding noise out but you have to take them off every 3 minutes to hear what people are saying. Clowns.
2) People hate folding, since the "serve and volley" has grown in popularity and become a well known trick (S&V = raising pre the bombing your stack off as your range gets thiner and thiner) a lot of players, escpially those from an internet tournament background or recreational players like to get the sherriff's hat on and keep us all honest all the time, this had led to 3berrel ranges becoming joke un-balanced if you're assumed anyway aggressive because people never fold, despite how many time you show them it
3) because people refuse to fold pairs, I only like to play big cards from early position, so I can make bigger pairs than curious colin in seat 8 who isn't going to fold his Q9 on A39J8.
In this specific hand the turn card thins your percieved range a ton, AQ/QQ/KK/AA/JJ/66 are now you're "LEGIT" value hands, although you could be going for thin value with some J*'s quite feesibly but because you're over 30 your young villain prolly doesn't think you can (little does he know you're a total sicko

) so this coupled with the fact he's prolly "made a plan" once he calls the turn I think he's bluff-catching the river almost always so I would give up OTR for sure. I don;t hate betting the turn at all cos you have equity (4's and 6's) and you could feesibly get him off his 55/77/88 hands but firing the river is going to work very infrequently cos the board texture is identical OTR.
Chk the river back, hope he has 45 and was planning a reverse double float c/r and when he shows you 88 say nice turn call, here's £40 go buy some headphones that don't make you look like a bad wedding D-J.