Worried about the sun and UV radiation/Skin Cancer

Hi.I have been pale for a long time but have always had a very slight tint since I am mixed race and what I have know and have been told WhiteEuropean-South East Asian-Latin/Hispanic and have decided fo go out this summer.At first for a week I used no sunscreen in 28-30 degrees for 2-4 hours then I got sunburnt twice.Then I tanned light brown and to then olive which I still didn't use sunscreen.I then started using sunscreen 50+ and skin doesnt burn anymore.I now use 50+ for 1 hour In the sun direct sunlight and sometimes no sunscreen on cloudy 23 degree days for 4-5 hours.My skin doesnt burn that much but seems to go a little red then olive like Javier Bardem or eva Mendes.Would you say my skin would be fine? And have anyone else done this before?
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Now I will only go out from 2pm onwards for 1-2 hours with 50+ to be safe..I'm kind of new to sun tanning,would this be okay?
but I feel I'd like to be more tanned and stay tanned nowadays instead of being more white
Thankyou very much.