You can consider collecting other data again and adding other variables. First, see if the sig corresponding to the ANOVA table is less than 0.05. If it is less than 0.05, the overall regression model is significant, and then look at the regression coefficient table below. If the sig here is greater than 0.05, the regression model is not significant, so it is unnecessary to look at the following. Secondly, based on the significant regression model, the adjusted R-square is the fitting degree of the model. The closer to 1, the better the fitting effect. Generally speaking, you don't need to care about the level of this paper, because the paper focuses on the rigor of research methods and ideas. The tutor will not investigate whether your results are right or wrong, and your data itself may not be of quality, so it doesn't matter, don't care. Thirdly, look at the sig value corresponding to each independent variable in the specific regression coefficient table. If sig is less than 0.05, it means that the independent variable has a significant predictive effect on the dependent variable, otherwise it has no effect.