Would Coulda Shoulda

Goal 2 is to make 5% per month on stocks.. so I went "all in" today.. and boy.. i took too big a bite.. now I'm underwater on them. Wish I woulda stuck to the plan. Course you can never know whats next.. but you can plan for some variation. I was just getting sick of going in 20%.. getting 5%.. and doing that over and over.. like whats the point? why don't i go in 100% and earn the 5% I'm going for? anyway.. It may be a week or two before I get out of this mess.