First time Morphine advice

[showmesurveys29@gm]

I have a high tolerance for opioids/opiates. Been on bupe for 4 years. Haven't taken it in 7 days, instead taking hydrocodone and morphine oral solution. I took last of hydro last night. So this morning started just morphine liquid. I've taken about 60mg in an hour trying to feel ANYTHING. And it's not working. I've never been morphine user so I'm not familiar with the dosing equivalent needed. For reference, I can take 3 hydrocodone 10mgs and feel pretty good, when mixed with maybe 10-20 mg of morphine oral liquid. I don't want to OD. So any advice would be great. Thanks in advance.