Just for today is a lot easier than 'never ever again' definitely. I'm not even old enough to buy a drink legally where I'm from, and I'm looking at never having a drink again. For me it's worth it though, if it means keeping the life I've started building. I don't know if I can do forever and ever... but I haven't had drink today, or for the previous 193 days.
I get a lot of help and support from NA meetings, my sponsor, and other people I've come to know in recovery. Reaching out is one of the best tools for staying clean I've found.