I'm 26 and started mine this year. I'm on month 5 and it's changed my life around. No pain, no hormones raging in my body that make me unbearable to be around. I do get the odd cramp but manageable with ibuprofen like normal people would treat a cramp! I am a totally different person on it so my dr has said I can continue on it for as long as I want.
As for symptoms I am lucky and haven't had many. I get the odd hot flush maybe once a month max... but it's also been "summer" and they have only been on hot days so I'm linking it to that.
Honestly, I'd give it a good shot at least. Took me 2 months to get settled with it to fully working and I have had one bad month due to placing (not having trained nurses so even had a period...) but apart from that it's the best
Also as you are young like me ask for hrt to start with. My dr said we need it more for our bodies and I've heard some ladies don't get it straight away.