Hey all,
I couldn't find this when I was looking online myself so I thought I'd make a Journey character will max health, mana and all research/unlocks for everyone:
https://drive.google.com/file/d/13nDFr9B6nMnXo8BuIM2O5EFfp0nQ5Yzf/view?usp=sharing

I used Terrasavr to make the character: https://yal.cc/r/terrasavr/

Enjoy!

If you are not sure where to put this file, here are the locations (you can copy and paste that into the explorer/finder):

Windows: %USERPROFILE%\Documents\My Games\Terraria\players
macOS (OS X): ~/Library/Application Support/Terraria/players
Linux: ~/.local/share/Terraria/players

(Information taken from PCGamingWiki[www.pcgamingwiki.com])

If you do not own the collector's edition the carrot will still not work (even if it's in your inventory). Here is how to fix it.


If you are on a Windows computer. Open Regedit (search for it in the start menu and you'll find it)

In Regedit go to the following folder:

HKEY_CURRENT_USER\Software\Terraria

Open the folder and right click New > String
Call the string Bunny
Now edit this string to have a value of 1.

(info stolen from Deadlee6)

Paste this command line inside your terminal/console

mkdir -p ~/.mono/registry/CurrentUser/software/terraria && echo '<values><value name="Bunny" type="string">1</value></values>' > ~/.mono/registry/CurrentUser/software/terraria/values.xml

If you are still confused or need more information, check out this great guide here!
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=684333881