Taking breaks is actually really good, resets your RTP is what I've seen with me, just make sure, you play a little cautiously, chase small wins on every original(every mode on each original) and you'll find great success
If you had played with small amounts, the RTP would've been higher for you since you came back after so long but playing with big balance kinda sets the RTP lower, I think it's like if the user hasn't even been active for so long, why should they get big wins on their comeback