Extra Stat Points

Statue of Goddess Zemyna Locations +1 Stat Point
1. West Siauliai Woods
2. Miners' Village
3. Lemprasa Pond
4. Royal Mausoleum Constructors' Chapel [Unlocked thru Map Quest]
5. Zachariel Crossroads
6. Saknis Plains
7. Inner Enceinte District
I used this website's maps to find every statue.

Revelations +3 Stat Points
1. Revelation of Crystal Mine
2. Revelation of Tenet Church
3. Revelation of Kvailas Forest
4. Revelation of Royal Mausoleum
5. Revelation of Mage Tower
6. Revelation of Great Cathedral


Stat Point Potions from Bosses - thank you, /u/Retribtion for the names and locations

1. Helgasercle on Mage Tower 5F (lv.126)
2. Naktis on Sanctuary (lv.145)

Misc

Steele Road
Protect the Heritage (1) > (2) = 1 stat
Treasure of the site > Expired Contract > Ready > Ruklys' Inheritance = 1 stat
Goddess' Ancient Garden quest that give stat
Traces of Stars (1) > (2) > (3) > (4) > (5) = +1 stat
Escanciu Village
Epitaph of Flurry / Flurry's Inscription (1) > (2) > (3) > (4) > (5) > (6) = +1 stat
Ferdimian Suburbs
Old Tale 1 > 2 > 3 > 4 > 5 > 6 > 7 = Zubeck's Secret Moves item (+1 stat when use)
Seir Rainforest
Do the main story quest to save the goddess = 3 stat points