Which League should I play in?

Hey fellow Exiled, new player over here with a question.

I have started playing a few months ago in the Dawn of the Hunt league on and off and began my journey with a Merc. I didn't really know what I was doing obviously since the game is quite complex and while leveling I had less and less fun. Then I saw a Sorc build on YouTube and it looked realy fun so I quit my Merc on level 24 and started to play Sorc with the purpose of building this:

https://mobalytics.gg/poe-2/profile/f44792ce-f16b-4663-a2f3-a0217a4c1e03/builds/0d5eded3-af1c-4cd6-b52c-d7eeaa724b96?weaponSet=set1

I have just started Act 3 and unlocked Fireball and Frost Wall and traded the unique gloves so that this build is starting to come together. Straight after that I had the most fun since I started playing PoE2! Now I am on vaccation and the next time I will be able to play is when the new patch has already been launched. Now I am asking myself: Should I just stick with this character on Standard League, have some more fun with this build, finish the campaign and play the Endgame until it starts getting boring? Or should I start over with the same build in the new league and enjoy all the new content (Act 4, Interludes, etc.)? I am not really sure what exactly I would be missing, since the game should still be fun in Standard, as long as I am enjoying my build and improving it, right?

Looking forward to replies from experienced players!

wrong category. this is poe 1 section.

try:
https://www.pathofexile.com/forum/view-forum/2217


and your answer is : Dawn of the hunt
fyi: this league will ends in 4 days. there will be new league with big changes. so you can play for fun or practice for now. you can start again with new patch.

Thank you!