I am on a fork but I dont know how to change this

Can someone tell me please?
Stop heatledger. Delete contents in blockchain dir. Start heatledger and let it resync. When resync is finished check if still on fork, if on fork repeat, if not start forging.
I am keep getting forked with small amount since the latest update. Sometimes it forges 4-5 hours, sometimes 2-3 days, but eventually gets blacklisted anyway.