I have had quite a few discussions of this in my private life already, as is presumable, so I gathered a lengthy F.A.Q. But, what really allows me to succeed is a well thought out strategy, and I'd go as far as to say that of my method prediction algorithms are 50% and the rest is determining optimal risk etc.
I don't do any trading or live-betting, I merely calculate pre-match probabilities very accurately and bet on where the odds exceed my calculated probability. And keep in mind, this is not my main profession, but a hobby, and my income is not limited to betting. While I don't boast a 7 figure income, I'd still call myself a success since I have pretty much achieved exactly what I set out to do. I am obviously not here to give away my secrets, but I'll gladly answer any practical questions you have. My total income for betting for 200 euros, and with the recent improvements I have set 50k as my target for the next year. I started my project 2 years ago, of which have been algo-betting with big bucks for almost a year, constantly improving my methods. Please contact me again if the answer I give in the comments is not satisfactory.
Quick edit: Sorry for the gentleman asking for tips to not get limited in DM-chat, I accidentally clicked 'ignore'.